恩位运算x

Posted 2020-09-09

#include<iostream>
#include<cstdio>

using namespace std;

int main()
{
    int q;
    cin>>q;
    int w=q<<1;//等价于q*2
    int e=1<<q;//等价于2的q次方
    int r=q>>1;//等价于q/2
    int t=1>>q;//等价于0
    cout<<w<<" "<<e<<" "<<r<<" "<<t;
    return 0;
 }