Buggy python submission (verdict: Runtime Error):
#解説の方針にしたがった
import fractions

N = int(input())
X = list(map(int, input().split()))
   
M = 1  
L = [0 for i in range(10)] #L(0)=0
R = [0 for i in range(10)]  #R(N+1) = 0

for i in range(N):
  L[i] = (fractions.gcd(L[i-1],X[i]))

for i in reversed(range(N)):
  #print(i)
  R[i] = (fractions.gcd(R[i+1],X[i]))
    
ans = 1

#print(L)
#print(R)
for i in range(N):
  ans = max(ans, fractions.gcd(L[i-1],R[i+1]))

print(ans)

Fixed submission:
#解説の方針にしたがった
import fractions

N = int(input())
X = list(map(int, input().split()))
   
M = 1  
L = [0 for i in range(100004)] #L(0)=0
R = [0 for i in range(100004)]  #R(N+1) = 0

for i in range(N):
  L[i] = (fractions.gcd(L[i-1],X[i]))

for i in reversed(range(N)):
  #print(i)
  R[i] = (fractions.gcd(R[i+1],X[i]))
    
ans = 1

#print(L)
#print(R)
for i in range(N):
  ans = max(ans, fractions.gcd(L[i-1],R[i+1]))

print(ans)

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

N = int(input())
X = list(map(int, input().split()))

def gcd_list(numbers):
    return reduce(fractions.gcd, numbers)
   
M = 1  
for i in range(0,N):
  L1 = X[:i]
  R1 = X[i+1:]
  if not L1:
    M = max(M, gcd_list(R1))
  elif not R1:
    M = max(M, gcd_list(L1))
  else:
    L = gcd_list(L1)
    R = gcd_list(R1)
    M = max(M, fractions.gcd(L,R))

print(M)

Fixed submission:
#解説の方針にしたがった
import fractions

N = int(input())
X = list(map(int, input().split()))
   
M = 1  
L = [0 for i in range(100004)] #L(0)=0
R = [0 for i in range(100004)]  #R(N+1) = 0

for i in range(N):
  L[i] = (fractions.gcd(L[i-1],X[i]))

for i in reversed(range(N)):
  #print(i)
  R[i] = (fractions.gcd(R[i+1],X[i]))
    
ans = 1

#print(L)
#print(R)
for i in range(N):
  ans = max(ans, fractions.gcd(L[i-1],R[i+1]))

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import fractions
from functools import reduce
N = int(input())
X = list(map(int, input().split()))
 
def gcd_list(numbers):
    return reduce(fractions.gcd, numbers)
  
gcd = 1
 
for i in range(N):
  Y = X.pop(i)
  gcd_1 = gcd_list(X)
  gcd = max(int(gcd), int(gcd_1))
  if gcd in X:
    break
  X.insert(i,Y)
print(gcd)

Fixed submission:
#解説の方針にしたがった
import fractions

N = int(input())
X = list(map(int, input().split()))
   
M = 1  
L = [0 for i in range(100004)] #L(0)=0
R = [0 for i in range(100004)]  #R(N+1) = 0

for i in range(N):
  L[i] = (fractions.gcd(L[i-1],X[i]))

for i in reversed(range(N)):
  #print(i)
  R[i] = (fractions.gcd(R[i+1],X[i]))
    
ans = 1

#print(L)
#print(R)
for i in range(N):
  ans = max(ans, fractions.gcd(L[i-1],R[i+1]))

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import fractions
from functools import reduce
N = int(input())
X = list(map(int, input().split()))

def gcd_list(numbers):
    return reduce(fractions.gcd, numbers)
  
gcd = 1

for i in range(N):
  Y = X.pop(i)
  gcd_1 = gcd_list(X)
  gcd = max(int(gcd), int(gcd_1))
  X.insert(i,Y)
print(gcd)

Fixed submission:
#解説の方針にしたがった
import fractions

N = int(input())
X = list(map(int, input().split()))
   
M = 1  
L = [0 for i in range(100004)] #L(0)=0
R = [0 for i in range(100004)]  #R(N+1) = 0

for i in range(N):
  L[i] = (fractions.gcd(L[i-1],X[i]))

for i in reversed(range(N)):
  #print(i)
  R[i] = (fractions.gcd(R[i+1],X[i]))
    
ans = 1

#print(L)
#print(R)
for i in range(N):
  ans = max(ans, fractions.gcd(L[i-1],R[i+1]))

print(ans)