Factorial

// http://www.spoj.com/problems/FCTRL/#include <iostream>#include <cmath>int main(int argc, char* argv[]){using std::cin;using std::cout;int c = 0;cin >> c;while (c-- >0){int n;cin >> n;int a = 0;while (n>1){n = n/5;a+=n;}cout << a << std::endl;}return 0;}