Buggy python submission (verdict: Runtime Error):
import math
from functools import reduce

def gcd(*numbers):
    return reduce(math.gcd, numbers)

def gcd_list(numbers):
    return reduce(math.gcd, numbers)

N = int(input())
A = [int(x) for x in input().split()]
AA = []
for i in A:
    if(not i in AA):
        AA+=[i]
AA.sort()
cand = -1
mingcd = gcd_list(AA)
if(len(AA)==2):
    print(max(AA))
else:
    for i in range(len(AA)-1):
        if(mingcd==gcd(AA[i],AA[i+1])):
            if(i<len(AA)-2):
                if(mingcd==gcd(AA[i],AA[i+2])):
                    cand = i
                else:
                    cand = i+1
                break
            else:
                cand = i+1
    if(cand==-1):
        cand = len(AA)-1
    print(gcd_list(AA[:cand]+AA[cand+1:]))


Fixed submission:
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
L = [0]*N
R = [0]*N
ans = 0
for i in range(N):
    if(i==0):
        L[i] = A[0]
        R[i] = A[-1]
    else:
        L[i] = gcd(A[i],L[i-1])
        R[i] = gcd(A[-i-1],R[i-1])

for i in range(N):
    if(i==0):
        ans = R[-2]
    elif(i==N-1):
        ans = max(ans,L[-2])
    else:    
        ans = max(ans,gcd(L[i-1],R[-i-2]))
print(ans)

Buggy python submission (verdict: Runtime Error):
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
AA = []
for i in A:
    if(not i in AA):
        AA+=[i]
AA.sort()
cand = -1
mingcd = gcd_list(AA)
if(N==2):
    print(max(AA))
else:
    for i in range(len(AA)-1):
        if(mingcd==gcd(AA[i],AA[i+1])):
            if(i<len(AA)-2):
                if(mingcd==gcd(AA[i],AA[i+2])):
                    cand = i
                else:
                    cand = i+1
                break
            else:
                cand = i+1
    if(cand==-1):
        cand = len(AA)-1
    print(gcd_list(AA[:cand]+AA[cand+1:]))


Fixed submission:
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
L = [0]*N
R = [0]*N
ans = 0
for i in range(N):
    if(i==0):
        L[i] = A[0]
        R[i] = A[-1]
    else:
        L[i] = gcd(A[i],L[i-1])
        R[i] = gcd(A[-i-1],R[i-1])

for i in range(N):
    if(i==0):
        ans = R[-2]
    elif(i==N-1):
        ans = max(ans,L[-2])
    else:    
        ans = max(ans,gcd(L[i-1],R[-i-2]))
print(ans)

Buggy python submission (verdict: Runtime Error):
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
As = []
for i in A:
    if(not i in As):
        As+=[i]
As.sort()
cand = -1
mingcd = gcd_list(As)
typ = -1
if(N==2):
    print(max(As))
else:
    for i in range(len(As)-1):
        if(mingcd==gcd(As[i],As[i+1])):
            if(i<N-2):
                if(mingcd==gcd(As[i],As[i+2])):
                    cand = i
                else:
                    cand = i+1
                break
            else:
                cand = i+1
    if(cand==-1):
        cand = len(As)-1
    print(gcd_list(As[:cand]+As[cand+1:]))


Fixed submission:
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
L = [0]*N
R = [0]*N
ans = 0
for i in range(N):
    if(i==0):
        L[i] = A[0]
        R[i] = A[-1]
    else:
        L[i] = gcd(A[i],L[i-1])
        R[i] = gcd(A[-i-1],R[i-1])

for i in range(N):
    if(i==0):
        ans = R[-2]
    elif(i==N-1):
        ans = max(ans,L[-2])
    else:    
        ans = max(ans,gcd(L[i-1],R[-i-2]))
print(ans)

Buggy python submission (verdict: Runtime Error):
import math
from functools import reduce

def gcd(*numbers):
    return reduce(math.gcd, numbers)

def gcd_list(numbers):
    return reduce(math.gcd, numbers)

N = int(input())
A = [int(x) for x in input().split()]
As = []
for i in A:
    if(not i in As):
        As+=[i]
As.sort()
cand = -1
mingcd = gcd_list(As)
typ = -1
if(N==2):
    print(max(As))
else:
    for i in range(len(As)-1):
        if(mingcd==gcd(As[i],As[i+1])):
            if(i<N-2):
                if(mingcd==gcd(As[i],As[i+2])):
                    cand = i
                else:
                    cand = i+1
                break
            else:
                cand = i+1
    if(cand==-1):
        cand = len(As)-1
    print(gcd_list(As[:cand]+As[cand+1:]))


Fixed submission:
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
L = [0]*N
R = [0]*N
ans = 0
for i in range(N):
    if(i==0):
        L[i] = A[0]
        R[i] = A[-1]
    else:
        L[i] = gcd(A[i],L[i-1])
        R[i] = gcd(A[-i-1],R[i-1])

for i in range(N):
    if(i==0):
        ans = R[-2]
    elif(i==N-1):
        ans = max(ans,L[-2])
    else:    
        ans = max(ans,gcd(L[i-1],R[-i-2]))
print(ans)

Buggy python submission (verdict: Runtime Error):
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
cand = 0
mingcd = gcd_list(A)
if(N<2):
    print(max(A))
else:
    for i in range(N-1):
        if(mingcd==fractions.gcd(A[i],A[i+1])):
            if(i<N-1):
                if(mingcd==fractions.gcd(A[i],A[i+2])):
                    cand = i
                else:
                    cand = i+1
                break
            else:
                if(mingcd==fractions.gcd(A[i],A[i-2])):
                    cand = i
                else:
                    cand = i+1
                break
    print(gcd_list(A[:cand]+A[cand+1:]))


Fixed submission:
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
L = [0]*N
R = [0]*N
ans = 0
for i in range(N):
    if(i==0):
        L[i] = A[0]
        R[i] = A[-1]
    else:
        L[i] = gcd(A[i],L[i-1])
        R[i] = gcd(A[-i-1],R[i-1])

for i in range(N):
    if(i==0):
        ans = R[-2]
    elif(i==N-1):
        ans = max(ans,L[-2])
    else:    
        ans = max(ans,gcd(L[i-1],R[-i-2]))
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
mgcd = 0
for ind,i in enumerate(A):
    mgcd = max(mgcd,gcd_list(A[:ind]+A[ind+1:]))
print(mgcd)


Fixed submission:
import fractions
from functools import reduce

def gcd(*numbers):
    return reduce(fractions.gcd, numbers)

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

N = int(input())
A = [int(x) for x in input().split()]
L = [0]*N
R = [0]*N
ans = 0
for i in range(N):
    if(i==0):
        L[i] = A[0]
        R[i] = A[-1]
    else:
        L[i] = gcd(A[i],L[i-1])
        R[i] = gcd(A[-i-1],R[i-1])

for i in range(N):
    if(i==0):
        ans = R[-2]
    elif(i==N-1):
        ans = max(ans,L[-2])
    else:    
        ans = max(ans,gcd(L[i-1],R[-i-2]))
print(ans)