Runtime error

[dinhkhanh]

Hi,
I'm a newbie to SPOJ system. I try to solve the problem Factorial. My code is run successfully in ideone.com but got runtime error((NZEC) in SPOJ. I don't know the reason. Could you suggest me the difference between 2 systems.
Here is my code:

def divide_by_5(n):
    if n%5 !=0:
        return 0
    return 1+ divide_by_5(n/5)
numtestcase = int(raw_input())
L = []
for numcase in range(numtestcase):
    num = int(raw_input())
    L.append(num)
for elem in L:
    z = 0
    for j in range(5,elem+1,5):
        z += divide_by_5(j)
    print z

Thanks,

[numerix]

My code is run successfully in ideone.com

No, it doesn't.

1
1000000000

[daft_wullie]

You should always consider that SPOJ's test cases may test boundary conditions. The memory error forced by your huge range() object can be avoided using xrange(). But then you will watch your code exceeding time limits.

For this problem you can try to think of an approach where your code doesn't need to run through all multiples of 5. My own solution use powers of 5 ...