ygsdx

guqingchen

[C++] 纯文本查看 复制代码

#include<iostream>
#include<cmath>
using namespace std;
int main(){
	char a;
	char b='A',c='Z';
	cin>>a;
	if(a>=b&&a<=c){
		cout<<"YES"; 
	}
	else{
		cout<<"NO";
	}
	return 0;
}