22010 牛妹数
牛妹数
https://ac.nowcoder.com/acm/problem/22010
#include<bits/stdc++.h>
using namespace std;
int main()
{
int a;
cin>>a;
if(a%2==0&&a>50) cout<<"yes";
else cout<<"no";
return 0;
}#include<bits/stdc++.h>
using namespace std;
int main()
{
int a;
cin>>a;
if(a%2==0&a>50) cout<<"yes";
else cout<<"no";
return 0;
}这叫按位与