#172
Factorial Trailing Zeroes
specialist · 975 · lc medium +32 · verified · 46.2% accepted · 3,513 likes · top 30%
Description
Compute the number of trailing zeros in n! and return it, where n is the given integer.
Example 1:
Input: n = 3
Output: 0
Explanation: 3! = 6, no trailing zero.
Example 2:
Input: n = 5
Output: 1
Explanation: 5! = 120, one trailing zero.
Example 3:
Input: n = 0
Output: 0
Code
1
2
3