Buggy python submission (verdict: Time Limit Exceeded):
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def prime_factorize(n):
    a = []
    while n % 2 == 0:
        a.append(2)
        n //= 2
    f = 3
    while f * f <= n:
        if n % f == 0:
            a.append(f)
            n //= f
        else:
            f += 2
    if n != 1:
        a.append(n)
    return a

a2 = [int(i//2) for i in map(int,input().split())]
count2 = set()
for i in a2:
    prime = prime_factorize(i)
    count2.add(prime.count(2))
if len(count2) == 1:

    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)

Fixed submission:
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def twocount(n):
    c = 0
    while n%2 == 0:
        n //= 2
        c += 1
    return c
 
a2 = [int(i//2) for i in map(int,input().split())]
count2 = set()
for i in a2:
    tc = twocount(i)
    count2.add(tc)
if len(count2) == 1:
 
    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)

Buggy python submission (verdict: Time Limit Exceeded):
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def prime_factorize(n):
    a = []
    while n % 2 == 0:
        a.append(2)
        n //= 2
    f = 3
    while f * f <= n:
        if n % f == 0:
            a.append(f)
            n //= f
        else:
            f += 2
    if n != 1:
        a.append(n)
    return a

a = list(map(int,input().split()))
count2 = set()
for i in a:
    prime = prime_factorize(i)
    count2.add(prime.count(2))
if len(count2) == 1:
    a2 = [int(i//2) for i in a]
    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)

Fixed submission:
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def twocount(n):
    c = 0
    while n%2 == 0:
        n //= 2
        c += 1
    return c
 
a2 = [int(i//2) for i in map(int,input().split())]
count2 = set()
for i in a2:
    tc = twocount(i)
    count2.add(tc)
if len(count2) == 1:
 
    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)

Buggy python submission (verdict: Time Limit Exceeded):
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def prime_factorize(n):
    a = []
    while n % 2 == 0:
        a.append(2)
        n //= 2
    f = 3
    while f * f <= n:
        if n % f == 0:
            a.append(f)
            n //= f
        else:
            f += 2
    if n != 1:
        a.append(n)
    return a

a = list(map(int,input().split()))
count2 = set()
for i in a:
    prime = prime_factorize(i)
    count2.add(prime.count(2))
if (len(count2) == 1) and (0 not in count2):
    a2 = [int(i//2) for i in a]
    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)

Fixed submission:
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def twocount(n):
    c = 0
    while n%2 == 0:
        n //= 2
        c += 1
    return c
 
a2 = [int(i//2) for i in map(int,input().split())]
count2 = set()
for i in a2:
    tc = twocount(i)
    count2.add(tc)
if len(count2) == 1:
 
    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)

Buggy python submission (verdict: Time Limit Exceeded):
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def prime_factorize(n):
    a = []
    while n % 2 == 0:
        a.append(2)
        n //= 2
    f = 3
    while f * f <= n:
        if n % f == 0:
            a.append(f)
            n //= f
        else:
            f += 2
    if n != 1:
        a.append(n)
    return a

a = list(map(int,input().split()))
count2 = set()
for i in a:
    prime = prime_factorize(i)
    count2.add(prime.count(2))
if (len(count2) == 1) and (0 not in count2):
    a2 = [int(i//2) for i in a]
    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)

Fixed submission:
N,M = list(map(int,input().split()))
def gcd(a,b):
    if b == 0:
        return a
    else:
        return gcd(b,a%b)
def twocount(n):
    c = 0
    while n%2 == 0:
        n //= 2
        c += 1
    return c
 
a2 = [int(i//2) for i in map(int,input().split())]
count2 = set()
for i in a2:
    tc = twocount(i)
    count2.add(tc)
if len(count2) == 1:
 
    if len(a2) == 1:
        div = M//a2[0]
        print((div+1)//2)
    else:
        gcda = a2[0]*a2[1]//gcd(a2[0],a2[1])
        for i in range(2,N):
            gcda = gcda*a2[i]//gcd(gcda,a2[i])
        div = M//gcda
        print((div+1)//2)
    
else:
    print(0)