solution

找末尾0的个数，即找有多少对2和5
==>问题等价于寻找所给数据中，有多少个2和5的因子，较少出现的因子次数即为0的个数

#include <iostream>
using namespace std;
int main()
{// 请在此输入您的代码printf("31");return 0;
}

#include<stdio.h>
#include<math.h>
typedef long long ll;
int main(){ll  x, two = 0, five = 0, ans = 0;for(int i = 0; i < 100; i++){scanf("%lld", &x);while(x % 2 == 0){two++;x /= 2;}while(x % 5 == 0){five++;x /= 5;}}if(two > five) two = five;printf("%lld", two);return 0;
}