A374.判断字符类型

#include<iostream>
using namespace std;
int main(){
    char ch;
    cin>>ch;
    if(ch>='A'&&ch<='Z') cout<<'A';
    else if(ch>='a'&&ch<='z') cout<<'a';
    else if(ch>='0'&&ch<='9') cout<<0;
    else cout<<"other";
    return 0;
}