乘积尾零（蓝桥杯2018C）

#include<iostream>
typedef long long ll;
using namespace std;
int main() {
	ll result = 1;
	int line = 10, num, zero = 0;
	for (int i = 0; i < line;i++) {
		do {
			scanf_s("%d",&num);
			result *= num;
			while (result%10 == 0) {
				result /= 10;
				zero++;
			}
			result %= 100000000;
		} while ((getchar())!='\n');
	}
	cout << zero << endl;
	return 0;
}

#include<iostream>
using namespace std;
int main() {
    int c2 = 0, c5 = 0;
    int num;
    for (int i = 0; i < 10;i++) {
        do {
            scanf_s("%d",&num);
            while (num % 2 == 0) {
                c2++;
                num /= 2;
            }
            while (num%5 == 0) {
                c5++;
                num /= 5;
            }
        } while (getchar() != '\n');
    }
    cout << min(c2, c5);
    return 0;
}