#include <bits/stdc++.h> using namespace std; int main(){ char ac;//定义字符类型 cin>>ac; if(char(ac)%2!=0)cout<<"YES"<<endl;//是不是奇数，是输出yes else cout<<"NO"<<endl;//否则输出no }

#include <bits/stdc++.h> using namespace std; int main(){ char a; cin>>a; if((int)a%2==0) cout<<"NO"<<endl; else cout<<"YES"<<endl; return 0; }

#include<iostream> using namespace std; int main(){ char a; cin>>a; int b=a; if(b%2==1){ cout<<"YES"; }else{ cout<<"NO"; } return 0; }