谷歌面试题:1024! 末尾有多少个0?
思路:
#include <iostream>
using namespace std;
int fiveNum(int n)
{
int ans=0;
while(n)
{
n=n/5;
ans=ans+n;
}
return ans;
}
int main()
{
int i = 1024;
int count = fiveNum(i);
cout<<count<<endl;
system("pause");
return 0;
}