071maozihan 2022-04-20 7:46:18 21 返回题目
#include<bits/stdc++.h>
#define int long long
using namespace std;
int n;
int f(int x)
{
if(x % 2 == 0)return f(x/2)+1; else return 0;
}
signed main()
cin>>n; cout<<f(n); return 0;
