Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/env python3
import fractions
import sys
import functools
sys.setrecursionlimit(10 ** 7)


def solve(N: int, A: "List[int]"):
    ans = 0
    for i in range(N):
        ans = max(ans, functools.reduce(fractions.gcd, A[0:i] + A[i + 1:]))
    print(ans)
    return


# Generated by 1.1.5 https://github.com/kyuridenamida/atcoder-tools
# (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    A = [int(next(tokens)) for _ in range(N)]  # type: "List[int]"
    solve(N, A)


if __name__ == '__main__':
    main()


Fixed submission:
#!/usr/bin/env python3
from fractions import gcd
import sys
sys.setrecursionlimit(10 ** 7)


def solve(N: int, A: "List[int]"):
    L, R = [0], [0]
    for i in range(N - 1):
        L.append(gcd(L[i], A[i]))
        R.append(gcd(R[i], A[-i - 1]))
    ans = 0
    for i in range(N):
        ans = max(ans, gcd(L[i], R[N - i - 1]))
    print(ans)
    return


# Generated by 1.1.5 https://github.com/kyuridenamida/atcoder-tools
# (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    A = [int(next(tokens)) for _ in range(N)]  # type: "List[int]"
    solve(N, A)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
#!/usr/bin/env python3
import fractions
import sys
import functools
sys.setrecursionlimit(10 ** 7)


def solve(N: int, A: "List[int]"):
    ans = 0
    for i in range(N):
        ans = max(ans, functools.reduce(fractions.gcd, A[0:i] + A[i + 1:]))
    print(ans)
    return


# Generated by 1.1.5 https://github.com/kyuridenamida/atcoder-tools
# (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    A = [int(next(tokens)) for _ in range(N)]  # type: "List[int]"
    solve(N, A)


if __name__ == '__main__':
    main()


Fixed submission:
#!/usr/bin/env python3
from fractions import gcd
import sys
sys.setrecursionlimit(10 ** 7)


def solve(N: int, A: "List[int]"):
    L, R = [0], [0]
    for i in range(N - 1):
        L.append(gcd(L[i], A[i]))
        R.append(gcd(R[i], A[-i - 1]))
    ans = 0
    for i in range(N):
        ans = max(ans, gcd(L[i], R[N - i - 1]))
    print(ans)
    return


# Generated by 1.1.5 https://github.com/kyuridenamida/atcoder-tools
# (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    A = [int(next(tokens)) for _ in range(N)]  # type: "List[int]"
    solve(N, A)


if __name__ == '__main__':
    main()

Buggy python submission (verdict: Runtime Error):
#!/usr/bin/env python3
import math
import sys
from functools import reduce
sys.setrecursionlimit(10 ** 7)


def solve(N: int, A: "List[int]"):
    ans = 0
    for i in range(N):
        ans = max(ans, reduce(math.gcd, A[0:i] + A[i + 1:]))
    print(ans)
    return


# Generated by 1.1.5 https://github.com/kyuridenamida/atcoder-tools
# (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    A = [int(next(tokens)) for _ in range(N)]  # type: "List[int]"
    solve(N, A)


if __name__ == '__main__':
    main()


Fixed submission:
#!/usr/bin/env python3
from fractions import gcd
import sys
sys.setrecursionlimit(10 ** 7)


def solve(N: int, A: "List[int]"):
    L, R = [0], [0]
    for i in range(N - 1):
        L.append(gcd(L[i], A[i]))
        R.append(gcd(R[i], A[-i - 1]))
    ans = 0
    for i in range(N):
        ans = max(ans, gcd(L[i], R[N - i - 1]))
    print(ans)
    return


# Generated by 1.1.5 https://github.com/kyuridenamida/atcoder-tools
# (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    A = [int(next(tokens)) for _ in range(N)]  # type: "List[int]"
    solve(N, A)


if __name__ == '__main__':
    main()