#include<iostream>
#include<cmath>
using namespace std;
int main()
{
 int n;
 cin>>n;
 if(n%2==0)cout<<"YES";
 else cout<<"NO";
 return 0;
}

#include #include using namespace std; int main() { int n; cin>>n; if(n%2==0)cout<<"YES"; else cout<<"NO"; return 0; }

//easy problem
#include<iostream>
using namespace std;
int a;
int main(){
	cin>>a;
	if(a==1||a==3||a==5) cout<<"NO"<<endl;
	else cout<<"YES"<<endl;
	return 0;
}

练习c++两年半，志在让老师白吃干饭。 题库里题解不断，看名就知道是我在干。

#include<iostream>
using namespace std;
long long zongtishu=1;
int main(){
	int a;
	cin>>a;
	if(a==1||a==3||a==5) cout<<"NO";
	else cout<<"YES";
        return 0;
}

用一个巧妙的方法:

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
 int n;
 cin>>n;
 if(n%2==0)cout<<"YES";
 else cout<<"NO";
 return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
	cin>>a;
	if(a==1){
		cout<<"NO";
		return 0;
	}
	if(a==3){
		cout<<"NO";
		return 0;
	}
	if(a==5){
		 cout<<"NO";
		 return 0;
	}
	else{
		cout<<"YES";
		return 0;
	}
}