Buggy python submission (verdict: Runtime Error):
import math
from decimal import Decimal, ROUND_HALF_UP
def lcm(a):
    x = a[0]
    for i in range(1, len(a)):
        x = (x * a[i]) // math.gcd(x, a[i])
    return x
def gcd(a):
  temp = math.gcd(a[0], a[1])
  for i in a:
    temp = math.gcd(temp,  i)
  return temp
n,m = map(int, input().split(" "))
a = list(map(int, input().split(" ")))
zero = False
count = 0
#a = list(map(lambda x: x // 2, na))
mini = lcm(a)
maxi = gcd(a)
maxi2 = maxi
nibai = 1
while(True):
  if maxi2 % 2 == 0:
    nibai *= 2
    maxi2 //= 2
  else:
    break
for i in a:
  if i % (2 * nibai) == 0:
    zero = True
    break
#print(nibai, maxi, mini)
if not zero:
  t = Decimal(str((m * 2 // mini) / 2))
  #print(t)
  print(t.quantize(Decimal('0'), rounding=ROUND_HALF_UP))
else:
  print(0)

Fixed submission:
import math
from decimal import Decimal, ROUND_HALF_UP
def lcm(a):
    x = a[0]
    for i in range(1, len(a)):
        x = (x * a[i]) // math.gcd(x, a[i])
    return x
def gcd(a):
  temp = math.gcd(a[0], a[1])
  for i in a:
    temp = math.gcd(temp,  i)
  return temp
n,m = map(int, input().split(" "))
a = list(map(int, input().split(" ")))
zero = False
count = 0
#a = list(map(lambda x: x // 2, na))
mini = lcm(a)
if len(a) != 1:
  maxi = gcd(a)
else:
  maxi = a[0]
maxi2 = maxi
nibai = 1
while(True):
  if maxi2 % 2 == 0:
    nibai *= 2
    maxi2 //= 2
  else:
    break
for i in a:
  if i % (2 * nibai) == 0:
    zero = True
    break
#print(nibai, maxi, mini)
if not zero:
  t = Decimal(str((m * 2 // mini) / 2))
  #print(t)
  print(t.quantize(Decimal('0'), rounding=ROUND_HALF_UP))
else:
  print(0)

Buggy python submission (verdict: Runtime Error):
import math
from decimal import Decimal, ROUND_HALF_UP
def lcm(a):
    x = a[0]
    for i in range(1, len(a)):
        x = (x * a[i]) // math.gcd(x, a[i])
    return x
def gcd(a):
  temp = math.gcd(a[0], a[1])
  for i in a:
    temp = math.gcd(temp,  i)
  return temp
n,m = map(int, input().split(" "))
a = list(map(int, input().split(" ")))
zero = False
count = 0
#a = list(map(lambda x: x // 2, na))
mini = lcm(a)
maxi = gcd(a)
maxi2 = maxi
nibai = 1
while(True):
  if maxi2 % 2 == 0:
    nibai *= 2
    maxi2 //= 2
  else:
    break
for i in a:
  if i % (2 * nibai) == 0:
    zero = True
    break
#print(nibai, maxi, mini)
if not zero:
  t = Decimal(str((m // (mini // 2)) / 2))
  #print(t)
  print(t.quantize(Decimal('0'), rounding=ROUND_HALF_UP))
else:
  print(0)

Fixed submission:
import math
from decimal import Decimal, ROUND_HALF_UP
def lcm(a):
    x = a[0]
    for i in range(1, len(a)):
        x = (x * a[i]) // math.gcd(x, a[i])
    return x
def gcd(a):
  temp = math.gcd(a[0], a[1])
  for i in a:
    temp = math.gcd(temp,  i)
  return temp
n,m = map(int, input().split(" "))
a = list(map(int, input().split(" ")))
zero = False
count = 0
#a = list(map(lambda x: x // 2, na))
mini = lcm(a)
if len(a) != 1:
  maxi = gcd(a)
else:
  maxi = a[0]
maxi2 = maxi
nibai = 1
while(True):
  if maxi2 % 2 == 0:
    nibai *= 2
    maxi2 //= 2
  else:
    break
for i in a:
  if i % (2 * nibai) == 0:
    zero = True
    break
#print(nibai, maxi, mini)
if not zero:
  t = Decimal(str((m * 2 // mini) / 2))
  #print(t)
  print(t.quantize(Decimal('0'), rounding=ROUND_HALF_UP))
else:
  print(0)