Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

import numpy as np
import fractions
from functools import reduce

from copy import deepcopy


def gcd_list(nums):
    return reduce(fractions.gcd, nums)

def main():
    N = int(input())
    A = np.array(sorted(list(map(int, input().split()))))

    bools = np.ones(N, dtype=bool)

    ans = 0
    vals = []
    for i in range(N):
        A_cop = deepcopy(A)
        bl_cop = deepcopy(bools)

        fal = [i]
        bl_cop[fal] = False

        vals.append(gcd_list(A_cop[bl_cop]))

    print(max(vals))

main()

Fixed submission:
import sys
input = sys.stdin.readline
import fractions


def main():
    N = int(input())
    A = list(map(int, input().split()))

    L_gcds = [0] * N
    L_gcd_tmp = L_gcds[0]
    for i in range(1, N):
        L_gcd_tmp = fractions.gcd(L_gcd_tmp, A[i-1])
        L_gcds[i] = L_gcd_tmp

    R_gcds = [0] * N
    R_gcd_tmp = R_gcds[0]
    for j in range(1, N):
        R_gcd_tmp = fractions.gcd(R_gcd_tmp, A[N-j])
        R_gcds[j] = R_gcd_tmp
    R_gcds.reverse()

    LR_gcds = [0] * N
    for k in range(0, N):
        LR_gcds[k] = fractions.gcd(L_gcds[k], R_gcds[k])

    print(max(LR_gcds))

main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

import numpy as np
import fractions
from functools import reduce

from copy import deepcopy


def gcd_list(nums):
    return reduce(fractions.gcd, nums)

def main():
    N = int(input())
    A = np.array(sorted(list(map(int, input().split()))))

    bools = np.ones(N, dtype=bool)

    gcd_val = 0
    ans = 0
    for i in range(N):
        A_cop = deepcopy(A)
        bl_cop = deepcopy(bools)

        fal = [i]
        bl_cop[fal] = False

        gcd_val = gcd_list(A_cop[bl_cop])

        if ans == 0 or ans < gcd_val:
            ans = gcd_val

    print(ans)

main()

Fixed submission:
import sys
input = sys.stdin.readline
import fractions


def main():
    N = int(input())
    A = list(map(int, input().split()))

    L_gcds = [0] * N
    L_gcd_tmp = L_gcds[0]
    for i in range(1, N):
        L_gcd_tmp = fractions.gcd(L_gcd_tmp, A[i-1])
        L_gcds[i] = L_gcd_tmp

    R_gcds = [0] * N
    R_gcd_tmp = R_gcds[0]
    for j in range(1, N):
        R_gcd_tmp = fractions.gcd(R_gcd_tmp, A[N-j])
        R_gcds[j] = R_gcd_tmp
    R_gcds.reverse()

    LR_gcds = [0] * N
    for k in range(0, N):
        LR_gcds[k] = fractions.gcd(L_gcds[k], R_gcds[k])

    print(max(LR_gcds))

main()

Buggy python submission (verdict: Runtime Error):
import sys
input = sys.stdin.readline

import numpy as np
import fractions
from functools import reduce

from copy import deepcopy


def gcd_list(nums):
    return reduce(fractions.gcd, nums)

def main():
    N = int(input())
    A = np.array(list(map(int, input().split())))

    bools = np.ones(N, dtype=bool)

    gcd_val = 0
    ans = 0
    for i in range(N):
        A_cop = deepcopy(A)
        bl_cop = deepcopy(bools)

        fal = [i]
        bl_cop[fal] = False

        gcd_val = gcd_list(A_cop[bl_cop])

        if ans == 0 or ans < gcd_val:
            ans = gcd_val

    print(ans)

main()

Fixed submission:
import sys
input = sys.stdin.readline
import fractions


def main():
    N = int(input())
    A = list(map(int, input().split()))

    L_gcds = [0] * N
    L_gcd_tmp = L_gcds[0]
    for i in range(1, N):
        L_gcd_tmp = fractions.gcd(L_gcd_tmp, A[i-1])
        L_gcds[i] = L_gcd_tmp

    R_gcds = [0] * N
    R_gcd_tmp = R_gcds[0]
    for j in range(1, N):
        R_gcd_tmp = fractions.gcd(R_gcd_tmp, A[N-j])
        R_gcds[j] = R_gcd_tmp
    R_gcds.reverse()

    LR_gcds = [0] * N
    for k in range(0, N):
        LR_gcds[k] = fractions.gcd(L_gcds[k], R_gcds[k])

    print(max(LR_gcds))

main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

import numpy as np
import fractions
from functools import reduce

from copy import deepcopy

import warnings

def gcd_list(nums):
    return reduce(fractions.gcd, nums)


def main():
    warnings.simplefilter('ignore')

    N = int(input())
    A = np.array(list(map(int, input().split())))

    bools = np.ones(N, dtype=bool)

    gcd_val = 0
    ans = 0
    for i in range(N):
        A_cop = deepcopy(A)
        bl_cop = deepcopy(bools)

        fal = [i]
        bl_cop[fal] = False

        gcd_val = gcd_list(A_cop[bl_cop])

        if ans == 0 or ans < gcd_val:
            ans = gcd_val

    print(ans)

main()

Fixed submission:
import sys
input = sys.stdin.readline
import fractions


def main():
    N = int(input())
    A = list(map(int, input().split()))

    L_gcds = [0] * N
    L_gcd_tmp = L_gcds[0]
    for i in range(1, N):
        L_gcd_tmp = fractions.gcd(L_gcd_tmp, A[i-1])
        L_gcds[i] = L_gcd_tmp

    R_gcds = [0] * N
    R_gcd_tmp = R_gcds[0]
    for j in range(1, N):
        R_gcd_tmp = fractions.gcd(R_gcd_tmp, A[N-j])
        R_gcds[j] = R_gcd_tmp
    R_gcds.reverse()

    LR_gcds = [0] * N
    for k in range(0, N):
        LR_gcds[k] = fractions.gcd(L_gcds[k], R_gcds[k])

    print(max(LR_gcds))

main()