id large_stringlengths 39 50 | domain large_stringclasses 3
values | difficulty large_stringclasses 4
values | prompt large_stringlengths 772 1.1k | canonical_solution large_stringclasses 7
values | test_cases large_stringlengths 55 333 | entry_point large_stringclasses 7
values | variant large_stringclasses 7
values | answer int64 0 399 | verification_status large_stringclasses 1
value |
|---|---|---|---|---|---|---|---|---|---|
arrays-monotonic_split-f01898bbe39e7059 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-f01898bbe39e7059
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 4 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 2, "input": {"array": [2, 2, 3, 3], "threshold": 3}}] | solve_arrays_monotonic_split | monotonic_split | 2 | sat |
arrays-equilibrium_index-fcaf408ef5765438 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-fcaf408ef5765438
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 4. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [6, 5, 4, 2]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-monotonic_split-350c2705f9c69f79 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-350c2705f9c69f79
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 5 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 0, "input": {"array": [2, 2, 2, 4, 5], "threshold": 2}}] | solve_arrays_monotonic_split | monotonic_split | 0 | sat |
arrays-equilibrium_index-3d7cbc7fe35c7c48 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-3d7cbc7fe35c7c48
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [4, 4, 4]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-monotonic_split-23989c1c06cd8564 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-23989c1c06cd8564
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 4 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 1, "input": {"array": [0, 1, 2, 4], "threshold": 1}}] | solve_arrays_monotonic_split | monotonic_split | 1 | sat |
arrays-monotonic_split-f83ad4c3b3a4945b | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-f83ad4c3b3a4945b
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 4 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 0, "input": {"array": [2, 4, 4, 4], "threshold": 2}}] | solve_arrays_monotonic_split | monotonic_split | 0 | sat |
arrays-equilibrium_index-5c25118b81b05c85 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-5c25118b81b05c85
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [2, 9, 2]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-effa7d045cc99980 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-effa7d045cc99980
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [8, 7, 8]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-88beb1835466c78f | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-88beb1835466c78f
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [8, 4, 8]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-16232be3b50ce037 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-16232be3b50ce037
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 5. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [9, 7, 9, 7, 9]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-equilibrium_index-2f71bdcf418d921f | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-2f71bdcf418d921f
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 5. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [7, 4, 1, 3, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-monotonic_split-ec4a226bd5d49775 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-ec4a226bd5d49775
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 3 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 2, "input": {"array": [1, 3, 5], "threshold": 5}}] | solve_arrays_monotonic_split | monotonic_split | 2 | sat |
arrays-monotonic_split-530fb97887b10d6a | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-530fb97887b10d6a
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 4 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 3, "input": {"array": [2, 3, 4, 6], "threshold": 6}}] | solve_arrays_monotonic_split | monotonic_split | 3 | sat |
arrays-equilibrium_index-5f2b8929f7be3577 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-5f2b8929f7be3577
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [8, 8, 8]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-monotonic_split-8883bccc01f9282a | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-8883bccc01f9282a
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 5 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 2, "input": {"array": [2, 2, 3, 4, 6], "threshold": 3}}] | solve_arrays_monotonic_split | monotonic_split | 2 | sat |
arrays-equilibrium_index-13520bb36d44b68e | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-13520bb36d44b68e
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 5. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [5, 7, 2, 7, 5]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-monotonic_split-c6974a828fa7a876 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-c6974a828fa7a876
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 3 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 1, "input": {"array": [0, 2, 2], "threshold": 2}}] | solve_arrays_monotonic_split | monotonic_split | 1 | sat |
arrays-equilibrium_index-8f1eb9e46bd017b5 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-8f1eb9e46bd017b5
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [8, 2, 8]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-f6855a420b49fdbf | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-f6855a420b49fdbf
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 5. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [6, 3, 8, 6, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-monotonic_split-2abbcd0d577e18ff | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-2abbcd0d577e18ff
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 4 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 0, "input": {"array": [2, 2, 2, 2], "threshold": 2}}] | solve_arrays_monotonic_split | monotonic_split | 0 | sat |
arrays-monotonic_split-db26a75d6e8d799e | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-db26a75d6e8d799e
# domain: arrays
# variant: monotonic_split
# difficulty: easy
You are given a 0-indexed non-decreasing integer array A of length 3 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A its... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 2, "input": {"array": [0, 2, 3], "threshold": 3}}] | solve_arrays_monotonic_split | monotonic_split | 2 | sat |
arrays-equilibrium_index-1a8307b31d48fd6e | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-1a8307b31d48fd6e
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [5, 8, 5]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-12c829027b103838 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-12c829027b103838
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 3. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [2, 2, 2]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-0a076e6cac693065 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-0a076e6cac693065
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 5. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [1, 2, 4, 2, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-equilibrium_index-a4a86fc34e0f4e60 | arrays | easy | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-a4a86fc34e0f4e60
# domain: arrays
# variant: equilibrium_index
# difficulty: easy
You are given a 0-indexed integer array A of length 5. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium inde... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [5, 6, 2, 6, 5]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-monotonic_split-e54d5a6c1d256858 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-e54d5a6c1d256858
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 11 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 1, "input": {"array": [2, 4, 6, 8, 9, 9, 9, 9, 9, 9, 9], "threshold": 4}}] | solve_arrays_monotonic_split | monotonic_split | 1 | sat |
arrays-equilibrium_index-54bbd88f3bc19d84 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-54bbd88f3bc19d84
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 10. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 6, "input": {"array": [2, 1, 3, 8, 5, 5, 8, 8, 9, 7]}}] | solve_arrays_equilibrium_index | equilibrium_index | 6 | sat |
arrays-equilibrium_index-04dccbf2b76a15b1 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-04dccbf2b76a15b1
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 7. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [9, 2, 4, 2, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-a78343f951c33c77 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-a78343f951c33c77
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 7. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [8, 1, 3, 2, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-34b12989982d3303 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-34b12989982d3303
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 7. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 3, "input": {"array": [1, 9, 3, 1, 5, 4, 4]}}] | solve_arrays_equilibrium_index | equilibrium_index | 3 | sat |
arrays-monotonic_split-198839695f931f0b | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-198839695f931f0b
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 9 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [1, 1, 1, 2, 4, 5, 5, 6, 8], "threshold": 5}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-monotonic_split-13397d7253845128 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-13397d7253845128
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 9 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 0, "input": {"array": [0, 0, 1, 1, 1, 3, 5, 6, 7], "threshold": 0}}] | solve_arrays_monotonic_split | monotonic_split | 0 | sat |
arrays-monotonic_split-4079e4e1ea3805b3 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-4079e4e1ea3805b3
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 12 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [1, 3, 5, 5, 6, 8, 8, 9, 9, 9, 9, 9], "threshold": 8}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-equilibrium_index-caae4b1548b4d261 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-caae4b1548b4d261
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 6. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [4, 9, 1, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-99751fe0100f3d4a | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-99751fe0100f3d4a
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 11. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 5, "input": {"array": [2, 3, 4, 6, 3, 2, 4, 2, 1, 6, 5]}}] | solve_arrays_equilibrium_index | equilibrium_index | 5 | sat |
arrays-monotonic_split-f2f7f7e9a99bb4a7 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-f2f7f7e9a99bb4a7
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 12 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 8, "input": {"array": [2, 4, 4, 5, 6, 6, 6, 8, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 8 | sat |
arrays-equilibrium_index-c6edcf2f27612cfa | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-c6edcf2f27612cfa
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 8. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [8, 2, 7, 2, 2, 2, 3, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-equilibrium_index-0da61b37b643ef9f | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-0da61b37b643ef9f
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 6. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 1, "input": {"array": [5, 3, 2, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 1 | sat |
arrays-equilibrium_index-6763f4daf0f079d8 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-6763f4daf0f079d8
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 10. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 5, "input": {"array": [7, 8, 6, 3, 2, 9, 2, 9, 7, 8]}}] | solve_arrays_equilibrium_index | equilibrium_index | 5 | sat |
arrays-monotonic_split-3cefc25db0cf238a | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-3cefc25db0cf238a
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 6 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 3, "input": {"array": [0, 1, 3, 4, 5, 6], "threshold": 4}}] | solve_arrays_monotonic_split | monotonic_split | 3 | sat |
arrays-monotonic_split-a2ff9b933d8ec567 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-a2ff9b933d8ec567
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 5 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 4, "input": {"array": [1, 1, 1, 3, 4], "threshold": 4}}] | solve_arrays_monotonic_split | monotonic_split | 4 | sat |
arrays-equilibrium_index-d6e82277e737de1c | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-d6e82277e737de1c
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 11. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [9, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-equilibrium_index-1020b6d4abf74e86 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-1020b6d4abf74e86
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 5. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [3, 5, 2, 4, 4]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-equilibrium_index-2c49907e4f5193e0 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-2c49907e4f5193e0
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 7. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium in... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 3, "input": {"array": [9, 6, 7, 2, 8, 6, 8]}}] | solve_arrays_equilibrium_index | equilibrium_index | 3 | sat |
arrays-equilibrium_index-e12fef724e3dc50b | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-e12fef724e3dc50b
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 11. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 3, "input": {"array": [5, 5, 3, 5, 1, 3, 1, 2, 3, 2, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 3 | sat |
arrays-monotonic_split-a3ec287d97f08132 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-a3ec287d97f08132
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 6 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 0, "input": {"array": [0, 1, 1, 2, 3, 5], "threshold": 0}}] | solve_arrays_monotonic_split | monotonic_split | 0 | sat |
arrays-monotonic_split-cdee758b5d47088f | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-cdee758b5d47088f
# domain: arrays
# variant: monotonic_split
# difficulty: medium
You are given a 0-indexed non-decreasing integer array A of length 11 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 1, "input": {"array": [0, 1, 2, 4, 6, 6, 6, 6, 8, 9, 9], "threshold": 1}}] | solve_arrays_monotonic_split | monotonic_split | 1 | sat |
arrays-equilibrium_index-008890f9528f9ce1 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-008890f9528f9ce1
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 11. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 3, "input": {"array": [1, 8, 9, 7, 1, 1, 3, 2, 5, 3, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 3 | sat |
arrays-equilibrium_index-125cd5bfa7e38eb9 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-125cd5bfa7e38eb9
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 10. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 5, "input": {"array": [9, 4, 3, 6, 6, 5, 5, 6, 9, 8]}}] | solve_arrays_equilibrium_index | equilibrium_index | 5 | sat |
arrays-equilibrium_index-426b24ab0339af38 | arrays | medium | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-426b24ab0339af38
# domain: arrays
# variant: equilibrium_index
# difficulty: medium
You are given a 0-indexed integer array A of length 12. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium i... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 4, "input": {"array": [8, 6, 7, 3, 5, 5, 4, 4, 4, 5, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 4 | sat |
arrays-monotonic_split-11e3ee5c5783aee6 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-11e3ee5c5783aee6
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 14 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 4, "input": {"array": [2, 2, 4, 4, 5, 5, 5, 7, 9, 9, 9, 9, 9, 9], "threshold": 5}}] | solve_arrays_monotonic_split | monotonic_split | 4 | sat |
arrays-monotonic_split-70400772a5fbe0d8 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-70400772a5fbe0d8
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 13 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [1, 3, 5, 6, 8, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-equilibrium_index-37816d47496e83ff | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-37816d47496e83ff
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 13. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 5, "input": {"array": [8, 4, 5, 9, 7, 9, 4, 4, 7, 7, 5, 3, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 5 | sat |
arrays-monotonic_split-cf6fa647d393b7f4 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-cf6fa647d393b7f4
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 13 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 6, "input": {"array": [0, 2, 4, 6, 7, 7, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 6 | sat |
arrays-monotonic_split-c1460316651a1049 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-c1460316651a1049
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 12 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 1, "input": {"array": [1, 3, 3, 3, 5, 5, 6, 7, 7, 9, 9, 9], "threshold": 3}}] | solve_arrays_monotonic_split | monotonic_split | 1 | sat |
arrays-monotonic_split-dacaa16bd44b6e3f | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-dacaa16bd44b6e3f
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 11 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 4, "input": {"array": [2, 4, 6, 6, 8, 8, 8, 9, 9, 9, 9], "threshold": 8}}] | solve_arrays_monotonic_split | monotonic_split | 4 | sat |
arrays-monotonic_split-bcf34a422244a5ee | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-bcf34a422244a5ee
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 10 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 4, "input": {"array": [0, 1, 3, 4, 6, 7, 7, 8, 9, 9], "threshold": 6}}] | solve_arrays_monotonic_split | monotonic_split | 4 | sat |
arrays-monotonic_split-034077ba86402903 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-034077ba86402903
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 11 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 0, "input": {"array": [1, 1, 1, 3, 3, 3, 4, 5, 5, 5, 7], "threshold": 1}}] | solve_arrays_monotonic_split | monotonic_split | 0 | sat |
arrays-monotonic_split-7d278960360d9948 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-7d278960360d9948
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 10 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 0, "input": {"array": [1, 1, 1, 3, 4, 5, 5, 6, 6, 7], "threshold": 1}}] | solve_arrays_monotonic_split | monotonic_split | 0 | sat |
arrays-equilibrium_index-b355d994056c98ae | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-b355d994056c98ae
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 10. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 6, "input": {"array": [9, 3, 5, 1, 4, 5, 1, 9, 9, 9]}}] | solve_arrays_equilibrium_index | equilibrium_index | 6 | sat |
arrays-equilibrium_index-44c6b4057d850891 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-44c6b4057d850891
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 10. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 4, "input": {"array": [5, 2, 8, 3, 1, 2, 3, 5, 3, 5]}}] | solve_arrays_equilibrium_index | equilibrium_index | 4 | sat |
arrays-equilibrium_index-e7d9275950b5cbe0 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-e7d9275950b5cbe0
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 10. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 2, "input": {"array": [3, 8, 7, 1, 1, 2, 2, 1, 1, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 2 | sat |
arrays-equilibrium_index-ff283d7f2eb793eb | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-ff283d7f2eb793eb
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 14. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 6, "input": {"array": [3, 5, 4, 9, 6, 7, 7, 6, 3, 4, 8, 2, 5, 6]}}] | solve_arrays_equilibrium_index | equilibrium_index | 6 | sat |
arrays-monotonic_split-3cc2ea460d4bbc17 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-3cc2ea460d4bbc17
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 12 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 11, "input": {"array": [1, 1, 1, 3, 3, 3, 4, 5, 5, 6, 8, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 11 | sat |
arrays-equilibrium_index-d45f0617f126d82e | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-d45f0617f126d82e
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 11. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 5, "input": {"array": [7, 7, 2, 8, 9, 9, 5, 6, 9, 4, 9]}}] | solve_arrays_equilibrium_index | equilibrium_index | 5 | sat |
arrays-monotonic_split-99744826f756ba4f | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-99744826f756ba4f
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 12 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 7, "input": {"array": [0, 0, 1, 3, 5, 5, 7, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 7 | sat |
arrays-monotonic_split-2544d0466732da89 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-2544d0466732da89
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 11 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [1, 2, 3, 3, 3, 4, 4, 5, 6, 7, 9], "threshold": 4}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-monotonic_split-2280e407d4942a84 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-2280e407d4942a84
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 12 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [2, 3, 3, 4, 6, 7, 7, 7, 9, 9, 9, 9], "threshold": 7}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-equilibrium_index-c92873ee1519d1ba | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-c92873ee1519d1ba
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 12. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 7, "input": {"array": [5, 4, 6, 7, 2, 2, 1, 7, 7, 9, 5, 6]}}] | solve_arrays_equilibrium_index | equilibrium_index | 7 | sat |
arrays-equilibrium_index-e0a70216cc771b4d | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-e0a70216cc771b4d
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 13. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 5, "input": {"array": [6, 2, 6, 5, 3, 7, 1, 5, 4, 4, 3, 2, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 5 | sat |
arrays-monotonic_split-f4872ecd0c88919e | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-f4872ecd0c88919e
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 10 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 2, "input": {"array": [1, 3, 4, 4, 6, 8, 9, 9, 9, 9], "threshold": 4}}] | solve_arrays_monotonic_split | monotonic_split | 2 | sat |
arrays-monotonic_split-5969fed8db60de4c | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-5969fed8db60de4c
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 14 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 1, "input": {"array": [1, 3, 3, 4, 5, 7, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 3}}] | solve_arrays_monotonic_split | monotonic_split | 1 | sat |
arrays-monotonic_split-f1fb23a19f251a75 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-f1fb23a19f251a75
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 10 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 6, "input": {"array": [0, 1, 3, 4, 6, 7, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 6 | sat |
arrays-equilibrium_index-6ca4e7375128bdec | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-6ca4e7375128bdec
# domain: arrays
# variant: equilibrium_index
# difficulty: hard
You are given a 0-indexed integer array A of length 13. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ind... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 7, "input": {"array": [8, 8, 6, 2, 4, 9, 7, 3, 8, 9, 9, 9, 9]}}] | solve_arrays_equilibrium_index | equilibrium_index | 7 | sat |
arrays-monotonic_split-d3a76130217daee5 | arrays | hard | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-d3a76130217daee5
# domain: arrays
# variant: monotonic_split
# difficulty: hard
You are given a 0-indexed non-decreasing integer array A of length 14 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A it... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 8, "input": {"array": [1, 3, 5, 6, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 8 | sat |
arrays-monotonic_split-c777d4554acd8392 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-c777d4554acd8392
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 15 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 6, "input": {"array": [2, 4, 6, 6, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 6 | sat |
arrays-monotonic_split-df90c32312844e96 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-df90c32312844e96
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 21 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [0, 2, 3, 3, 5, 6, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 6}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-monotonic_split-9fb7019c937b1ab0 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-9fb7019c937b1ab0
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 15 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 4, "input": {"array": [2, 4, 6, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 4 | sat |
arrays-monotonic_split-3eb9c250bd36cebc | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-3eb9c250bd36cebc
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 24 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 8, "input": {"array": [2, 3, 3, 5, 5, 7, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 8 | sat |
arrays-monotonic_split-06fe2a5441d16699 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-06fe2a5441d16699
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 19 with
0 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 3, "input": {"array": [0, 2, 2, 3, 4, 4, 5, 6, 6, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9], "threshold": 3}}] | solve_arrays_monotonic_split | monotonic_split | 3 | sat |
arrays-equilibrium_index-1113d3dc978d43bc | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-1113d3dc978d43bc
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 23. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 9, "input": {"array": [1, 3, 2, 6, 5, 8, 1, 4, 7, 9, 4, 3, 2, 1, 4, 2, 3, 3, 4, 3, 3, 1, 4]}}] | solve_arrays_equilibrium_index | equilibrium_index | 9 | sat |
arrays-monotonic_split-6bccdc5744cf17c3 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-6bccdc5744cf17c3
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 16 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 4, "input": {"array": [2, 4, 6, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 8}}] | solve_arrays_monotonic_split | monotonic_split | 4 | sat |
arrays-monotonic_split-3b05210bd69bcaa6 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-3b05210bd69bcaa6
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 19 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 10, "input": {"array": [1, 3, 3, 3, 5, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 10 | sat |
arrays-equilibrium_index-6eefb7375c4e8266 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-6eefb7375c4e8266
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 16. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 4, "input": {"array": [6, 3, 4, 6, 3, 2, 2, 1, 1, 3, 1, 2, 3, 2, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 4 | sat |
arrays-equilibrium_index-8f0d6f1f8b1ff691 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-8f0d6f1f8b1ff691
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 21. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 7, "input": {"array": [4, 7, 7, 5, 7, 2, 1, 6, 2, 5, 2, 3, 4, 3, 2, 2, 2, 1, 1, 3, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 7 | sat |
arrays-equilibrium_index-f4847eabe416e5db | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-f4847eabe416e5db
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 16. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 3, "input": {"array": [9, 2, 8, 8, 3, 1, 1, 2, 2, 1, 1, 1, 1, 1, 3, 2]}}] | solve_arrays_equilibrium_index | equilibrium_index | 3 | sat |
arrays-equilibrium_index-baaf5d4886802bcf | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-baaf5d4886802bcf
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 19. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 3, "input": {"array": [3, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 3 | sat |
arrays-monotonic_split-6d182a6e1e8bb38a | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-6d182a6e1e8bb38a
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 15 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 8, "input": {"array": [1, 1, 3, 3, 5, 6, 7, 8, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 8 | sat |
arrays-equilibrium_index-f49f4a16245ca727 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-f49f4a16245ca727
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 21. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 7, "input": {"array": [2, 1, 8, 2, 4, 2, 8, 1, 2, 2, 1, 1, 1, 2, 1, 3, 3, 3, 2, 3, 3]}}] | solve_arrays_equilibrium_index | equilibrium_index | 7 | sat |
arrays-equilibrium_index-52e1c7927db90b2c | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-52e1c7927db90b2c
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 24. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 7, "input": {"array": [4, 6, 7, 7, 6, 1, 6, 6, 1, 3, 2, 2, 3, 2, 4, 1, 2, 3, 1, 2, 3, 2, 2, 4]}}] | solve_arrays_equilibrium_index | equilibrium_index | 7 | sat |
arrays-monotonic_split-12d78280b716c643 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-12d78280b716c643
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 24 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 6, "input": {"array": [1, 3, 4, 6, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 6 | sat |
arrays-equilibrium_index-858735848919498b | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-858735848919498b
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 18. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 4, "input": {"array": [6, 1, 7, 5, 1, 2, 1, 3, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 4 | sat |
arrays-equilibrium_index-a2fe3e3b0a2a0c97 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-a2fe3e3b0a2a0c97
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 21. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 6, "input": {"array": [2, 6, 9, 4, 8, 9, 3, 2, 1, 3, 3, 2, 1, 5, 3, 5, 2, 3, 3, 3, 2]}}] | solve_arrays_equilibrium_index | equilibrium_index | 6 | sat |
arrays-equilibrium_index-d86846a4332ee097 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-d86846a4332ee097
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 19. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 9, "input": {"array": [9, 4, 1, 3, 6, 9, 6, 9, 9, 5, 9, 5, 4, 9, 7, 5, 4, 7, 6]}}] | solve_arrays_equilibrium_index | equilibrium_index | 9 | sat |
arrays-monotonic_split-4bcce6f584f0cc4f | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-4bcce6f584f0cc4f
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 17 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [2, 2, 4, 5, 6, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 8}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-equilibrium_index-d1cdbb0150804b26 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-d1cdbb0150804b26
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 20. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 5, "input": {"array": [6, 7, 9, 5, 1, 8, 5, 3, 1, 1, 1, 2, 3, 1, 2, 2, 4, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 5 | sat |
arrays-monotonic_split-f12c85dd99d5f318 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-f12c85dd99d5f318
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 17 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [1, 2, 3, 3, 4, 5, 5, 5, 7, 8, 9, 9, 9, 9, 9, 9, 9], "threshold": 5}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-equilibrium_index-79342dd7ca953ba8 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-equilibrium_index-79342dd7ca953ba8
# domain: arrays
# variant: equilibrium_index
# difficulty: extreme
You are given a 0-indexed integer array A of length 15. Every element is a
strictly positive integer with 1 <= A[i] <= 9.
An index i is an equilibrium ... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
total = sum(array)
prefix = 0
answer = -1
for index, value in enumerate(array):
suffix = total - prefix - value
if prefix == suffix:
answer = index
break
prefix += value
print(answer)
| [{"expected_output": 4, "input": {"array": [2, 1, 3, 7, 6, 1, 1, 1, 2, 1, 3, 1, 1, 1, 1]}}] | solve_arrays_equilibrium_index | equilibrium_index | 4 | sat |
arrays-monotonic_split-a3471f77dd6a4794 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-a3471f77dd6a4794
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 16 with
2 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 5, "input": {"array": [2, 2, 4, 4, 6, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9], "threshold": 8}}] | solve_arrays_monotonic_split | monotonic_split | 5 | sat |
arrays-monotonic_split-df9dba154b9caec2 | arrays | extreme | You are an expert competitive programmer.
# problem_id: arrays-monotonic_split-df9dba154b9caec2
# domain: arrays
# variant: monotonic_split
# difficulty: extreme
You are given a 0-indexed non-decreasing integer array A of length 18 with
1 <= A[i] <= 9, together with an integer threshold T drawn from the
elements of A... | import json
import sys
data = json.load(sys.stdin)
array = data["array"]
threshold = data["threshold"]
answer = -1
for index, value in enumerate(array):
if value >= threshold:
answer = index
break
print(answer)
| [{"expected_output": 12, "input": {"array": [1, 2, 2, 3, 4, 4, 4, 6, 6, 8, 8, 8, 9, 9, 9, 9, 9, 9], "threshold": 9}}] | solve_arrays_monotonic_split | monotonic_split | 12 | sat |
End of preview. Expand in Data Studio
proceval-dataset
A formally verified benchmark of 300 algorithmic problems generated
by proceval (proceval/0.1.0). Every instance satisfies machine-checked
proof obligations produced with the Z3 SMT solver at generation time.
Composition
Domains
| Value | Problems |
|---|---|
| arrays | 100 |
| automata | 100 |
| graphs | 100 |
Difficulty distribution
| Value | Problems |
|---|---|
| easy | 75 |
| medium | 75 |
| hard | 75 |
| extreme | 75 |
Variants
| Variant | Problems |
|---|---|
| dag_reachability | 35 |
| dag_shortest_path | 30 |
| dag_topological_position | 35 |
| dfa_product_reachability | 44 |
| dfa_string_acceptance | 56 |
| equilibrium_index | 52 |
| monotonic_split | 48 |
Formal verification guarantees
- Satisfiability. Z3 proves the declarative encoding of each task admits at
least one solution (
status == "sat"). - Uniqueness. Z3 proves the answer is unique by model exclusion: blocking
the witness model renders the system unsatisfiable (
unique == true). - Oracle agreement. The Z3 witness is cross-checked against an independent brute-force oracle for every problem.
- Mutation-verified references. Reference solutions achieve a 100% AST mutation kill rate against their test suites (comparison flips, boundary arithmetic, boolean flags).
- Determinism. Identical seeds reproduce byte-identical problem payloads (excluding solver timing metadata).
Data fields
| Column | Type | Description |
|---|---|---|
id |
string | Stable content-hash identifier. |
domain |
string | Generator domain (arrays, graphs, automata). |
difficulty |
string | Difficulty tier (easy, medium, hard, extreme). |
variant |
string | Task variant within the domain. |
prompt |
string | Ready-to-use model prompt embedding the task and input JSON. |
canonical_solution |
string | Mutation-audited reference solution. |
test_cases |
string | JSON list of {input, expected_output} pairs. |
entry_point |
string | Canonical solve_* entry-point name. |
answer |
integer | The Z3-proven unique answer. |
verification_status |
string | Formal verification status (always sat). |
Generation
- Tool:
proceval/0.1.0 - Base seed: per-split deterministic seeds
- Generated: 2026-08-24
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