Trailing zeros - ReimuOJ: Reimu Online Judge

Count the number of trailing zeros in

$n!$ . Note:

$n! = 1 \times 2 \times ... \times n$ . ### Input - The first line contains an integer

$n$ . ### Output - A single integer is the number of traling zeros in

$n!$ . ### Constraints -

$1 \le n \le 1000$ . ### Example Input:

$10$

Output:

$2$

Topic

Basic

Rating

800

Solution (0)

Solution