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lcb-0083

0.000
0/1 tests· algorithms

Proposed solution

```python
import sys
import math

def is_prime(n):
    if n <= 1:
        return False
    if n <= 3:
        return True
    if n % 2 == 0 or n % 3 == 0:
        return False
    i = 5
    while i * i <= n:
        if n % i == 0:
            return False
        i += 2
    return True

def prime_factors(n):
    factors = set()
    while n % 2 == 0:
        factors.add(2)
        n //= 2
    while n % 3 == 0:
        factors.add(3)
        n //= 3
    for i in range(5, int(math.sqrt(n)) + 1, 6):
        while n % i == 0:
            factors.add(i)
            n //= i
        while n % (i + 2) == 0:
            factors.add(i + 2)
            n //= (i + 2)
    if n > 4:
        factors.add(n)
    return factors

def largest_400_number_not_exceeding_a(a):
    if a < 36:
        return -1
    if a == 36:
        return 36
    if a % 2 != 0 and a % 3 != 0:
        return a - 1
    if a % 2 == 0 and a % 3 == 0:
        return a - 3
    if a % 2 == 0:
        return a // 2 * 3
    else:
        return a // 3 * 2

def main():
    input_data = sys.stdin.read().splitlines()
    Q = int(input_data[0])
    results = []
    for i in range(1, Q + 1):
        A = int(input_data[i])
        results.append(str(largest_400_number_not_exceeding_a(A)))
    print("\n".join(results))

if __name__ == "__main__":
    main()
```

Test output (stdout)

F                                                                        [100%]
=================================== FAILURES ===================================
_______________________________ test_lcb_0083[0] _______________________________

i = 0

    @pytest.mark.parametrize("i", range(len(_CASES)))
    def test_lcb_0083(i):
        c = _CASES[i]
        p = subprocess.run([sys.executable, str(_D / "solution.py")],
                           input=c["input"], capture_output=True, text=True, timeout=15)
        assert p.returncode == 0, f"runtime error: {p.stderr[-800:]}"
>       assert _norm(p.stdout) == _norm(c["output"]), (
            f"input={c['input']!r} expected={c['output']!r} got={p.stdout!r}")
E       AssertionError: input='5\n404\n36\n60\n1000000000000\n123456789' expected='400\n36\n36\n1000000000000\n123454321' got='606\n36\n57\n1500000000000\n82304526\n'
E       assert '606\n36\n57\...000\n82304526' == '400\n36\n36\...00\n123454321'
E         
E         - 400
E         + 606
E           36
E         - 36
E         + 57
E         - 1000000000000...
E         
E         ...Full output truncated (5 lines hidden), use '-vv' to show

test_lcb_0083.py:20: AssertionError
=========================== short test summary info ============================
FAILED test_lcb_0083.py::test_lcb_0083[0] - AssertionError: input='5\n404\n36...
1 failed in 0.03s
Self-repair attempts
[
  {
    "total": 1,
    "answer": "```python\nimport sys\nimport math\n\ndef is_prime(n):\n    if n <= 1:\n        return False\n    if n <= 3:\n        return True\n    if n % 2 == 0 or n % 3 == 0:\n        return False\n    i = 5\n    while i * i <= n:\n        if n % i == 0:\n            return False\n        i += 2\n    return True\n\ndef prime_factors(n):\n    factors = set()\n    while n % 2 == 0:\n        factors.add(2)\n        n //= 2\n    while n % 3 == 0:\n        factors.add(3)\n        n //= 3\n    for i in range(5, int(math.sqrt(n)) + 1, 6):\n        while n % i == 0:\n            factors.add(i)\n            n //= i\n        while n % (i + 2) == 0:\n            factors.add(i + 2)\n            n //= (i + 2)\n    if n > 4:\n        factors.add(n)\n    return factors\n\ndef largest_400_number_not_exceeding_a(a):\n    if a < 36:\n        return -1\n    if a == 36:\n        return 36\n    if a % 2 != 0 and a % 3 != 0:\n        return a - 1\n    if a % 2 == 0 and a % 3 == 0:\n        return a - 3\n    if a % 2 == 0:\n        return a // 2 * 3\n    else:\n        return a // 3 * 2\n\ndef main():\n    input_data = sys.stdin.read().splitlines()\n    Q = int(input_data[0])\n    results = []\n    for i in range(1, Q + 1):\n        A = int(input_data[i])\n        results.append(str(largest_400_number_not_exceeding_a(A)))\n    print(\"\\n\".join(results))\n\nif __name__ == \"__main__\":\n    main()\n```",
    "passed": 0,
    "test_error": "F                                                                        [100%]\n=================================== FAILURES ===================================\n_______________________________ test_lcb_0083[0] _______________________________\n\ni = 0\n\n    @pytest.mark.parametrize(\"i\", range(len(_CASES)))\n    def test_lcb_0083(i):\n        c = _CASES[i]\n        p = subprocess.run([sys.executable, str(_D / \"solution.py\")],\n                           input=c[\"input\"], capture_output=True, text=True, timeout=15)\n        assert p.returncode == 0, f\"runtime error: {p.stderr[-800:]}\"\n>       assert _norm(p.stdout) == _norm(c[\"output\"]), (\n            f\"input={c['input']!r} expected={c['output']!r} got={p.stdout!r}\")\nE       AssertionError: input='5\\n404\\n36\\n60\\n1000000000000\\n123456789' expected='400\\n36\\n36\\n1000000000000\\n123454321' got='606\\n36\\n57\\n1500000000000\\n82304526\\n'\nE       assert '606\\n36\\n57\\...000\\n82304526' == '400\\n36\\n36\\...00\\n123454321'\nE         \nE         - 400\nE         + 606\nE           36\nE         - 36\nE         + 57\nE         - 1000000000000...\nE         \nE         ...Full output truncated (5 lines hidden), use '-vv' to show\n\ntest_lcb_0083.py:20: AssertionError\n=========================== short test summary info ============================\nFAILED test_lcb_0083.py::test_lcb_0083[0] - AssertionError: input='5\\n404\\n36...\n1 failed in 0.03s"
  },
  {
    "total": 1,
    "answer": "```python\nimport sys\nimport math\n\ndef is_prime(n):\n    if n <= 1:\n        return False\n    if n <= 3:\n        return True\n    if n % 2 == 0 or n % 3 == 0:\n        return False\n    i = 5\n    while i * i <= n:\n        if n % i == 0:\n            return False\n        i += 2\n    return True\n\ndef prime_factors(n):\n    factors = set()\n    while n % 2 == 0:\n        factors.add(2)\n        n //= 2\n    while n % 3 == 0:\n        factors.add(3)\n        n //= 3\n    for i in range(5, int(math.sqrt(n)) + 1, 6):\n        while n % i == 0:\n            factors.add(i)\n            n //= i\n        while n % (i + 2) == 0:\n            factors.add(i + 2)\n            n //= (i + 2)\n    if n > 4:\n        factors.add(n)\n    return factors\n\ndef largest_400_number_not_exceeding_a(a):\n    if a < 36:\n        return -1\n    if a == 36:\n        return 36\n    if a % 2 != 0 and a % 3 != 0:\n        return a - 1\n    if a % 2 == 0 and a % 3 == 0:\n        return a - 3\n    if a % 2 == 0:\n        return a // 2 * 3\n    else:\n        return a // 3 * 2\n\ndef main():\n    input_data = sys.stdin.read().splitlines()\n    Q = int(input_data[0])\n    results = []\n    for i in range(1, Q + 1):\n        A = int(input_data[i])\n        results.append(str(largest_400_number_not_exceeding_a(A)))\n    print(\"\\n\".join(results))\n\nif __name__ == \"__main__\":\n    main()\n```",
    "passed": 0,
    "test_error": "F                                                                        [100%]\n=================================== FAILURES ===================================\n_______________________________ test_lcb_0083[0] _______________________________\n\ni = 0\n\n    @pytest.mark.parametrize(\"i\", range(len(_CASES)))\n    def test_lcb_0083(i):\n        c = _CASES[i]\n        p = subprocess.run([sys.executable, str(_D / \"solution.py\")],\n                           input=c[\"input\"], capture_output=True, text=True, timeout=15)\n        assert p.returncode == 0, f\"runtime error: {p.stderr[-800:]}\"\n>       assert _norm(p.stdout) == _norm(c[\"output\"]), (\n            f\"input={c['input']!r} expected={c['output']!r} got={p.stdout!r}\")\nE       AssertionError: input='5\\n404\\n36\\n60\\n1000000000000\\n123456789' expected='400\\n36\\n36\\n1000000000000\\n123454321' got='606\\n36\\n57\\n1500000000000\\n82304526\\n'\nE       assert '606\\n36\\n57\\...000\\n82304526' == '400\\n36\\n36\\...00\\n123454321'\nE         \nE         - 400\nE         + 606\nE           36\nE         - 36\nE         + 57\nE         - 1000000000000...\nE         \nE         ...Full output truncated (5 lines hidden), use '-vv' to show\n\ntest_lcb_0083.py:20: AssertionError\n=========================== short test summary info ============================\nFAILED test_lcb_0083.py::test_lcb_0083[0] - AssertionError: input='5\\n404\\n36...\n1 failed in 0.03s"
  },
  {
    "total": 1,
    "answer": "```python\nimport sys\nimport math\n\ndef is_prime(n):\n    if n <= 1:\n        return False\n    if n <= 3:\n        return True\n    if n % 2 == 0 or n % 3 == 0:\n        return False\n    i = 5\n    while i * i <= n:\n        if n % i == 0:\n            return False\n        i += 2\n    return True\n\ndef prime_factors(n):\n    factors = set()\n    while n % 2 == 0:\n        factors.add(2)\n        n //= 2\n    while n % 3 == 0:\n        factors.add(3)\n        n //= 3\n    for i in range(5, int(math.sqrt(n)) + 1, 6):\n        while n % i == 0:\n            factors.add(i)\n            n //= i\n        while n % (i + 2) == 0:\n            factors.add(i + 2)\n            n //= (i + 2)\n    if n > 4:\n        factors.add(n)\n    return factors\n\ndef largest_400_number_not_exceeding_a(a):\n    if a < 36:\n        return -1\n    if a == 36:\n        return 36\n    if a % 2 != 0 and a % 3 != 0:\n        return a - 1\n    if a % 2 == 0 and a % 3 == 0:\n        return a - 3\n    if a % 2 == 0:\n        return a // 2 * 3\n    else:\n        return a // 3 * 2\n\ndef main():\n    input_data = sys.stdin.read().splitlines()\n    Q = int(input_data[0])\n    results = []\n    for i in range(1, Q + 1):\n        A = int(input_data[i])\n        results.append(str(largest_400_number_not_exceeding_a(A)))\n    print(\"\\n\".join(results))\n\nif __name__ == \"__main__\":\n    main()\n```",
    "passed": 0,
    "test_error": ""
  }
]
System prompt
You are an expert programmer. Solve the task exactly as specified. Output your solution as fenced code blocks using the required file name(s) and the exact function/type signatures requested. Prefer correctness; do not include prose outside code unless asked.