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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = np.array(a)
a = a // 2

import fractions
from functools import reduce

def getLCM(a, b):
    return a * b // fractions.gcd(a, b)

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = reduce(lambda x, y: getLCM(x, y), a)
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = [ai >> 1 for ai in a]

import fractions
from functools import reduce

def getLCM(a, b):
    return a * b // fractions.gcd(a, b)

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = reduce(lambda x, y: getLCM(x, y), a)
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = np.array(a)
a = a // 2

import fractions
from functools import reduce

def getLCM(a, b):
    return a * b // math.gcd(a, b)

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = reduce(lambda x, y: getLCM(x, y), a)
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = [ai >> 1 for ai in a]

import fractions
from functools import reduce

def getLCM(a, b):
    return a * b // fractions.gcd(a, b)

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = reduce(lambda x, y: getLCM(x, y), a)
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = np.array(a)
tmp = (a/2).astype(np.int)

import fractions

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = tmp[0]
    for i in range(1, n):
        lcm = lcm * tmp[i] // fractions.gcd(lcm, tmp[i])
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = [ai >> 1 for ai in a]

import fractions
from functools import reduce

def getLCM(a, b):
    return a * b // fractions.gcd(a, b)

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = reduce(lambda x, y: getLCM(x, y), a)
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = np.array(a)
tmp = (a/2).astype(np.int)

import fractions
lcm = tmp[0]
for i in range(1, n):
    lcm = lcm * tmp[i] // fractions.gcd(lcm, tmp[i])


def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(0, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = [ai >> 1 for ai in a]

import fractions
from functools import reduce

def getLCM(a, b):
    return a * b // fractions.gcd(a, b)

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = reduce(lambda x, y: getLCM(x, y), a)
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)

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

import numpy as np

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = np.array(a)
tmp = (a/2).astype(np.int)
lcm = np.lcm.reduce(tmp)

max_a = max(a)
if max_a%lcm == 0:
    lcm = lcm * (max(a)//lcm)
else:
    lcm = lcm * (max(a)//lcm+1)

if m < lcm:
    print(0)
else:
    if m%lcm == 0:
        print(m//lcm)
    else:
        print(m//lcm+1)

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

n, m = map(int, input().split())
*a, = map(int, input().split()) 

a = [ai >> 1 for ai in a]

import fractions
from functools import reduce

def getLCM(a, b):
    return a * b // fractions.gcd(a, b)

def f(x):
    cnt = 0
    while x%2 == 0:
        x //= 2
        cnt += 1
    return cnt

cnt = f(a[0])
for i in range(1, len(a)):
    if cnt != f(a[i]):
        print(0)
        break
else:
    lcm = reduce(lambda x, y: getLCM(x, y), a)
    ans = (m-lcm) // (lcm*2) + 1 if m >= lcm else 0
    print(ans)