1008: [编程入门]成绩评定

解题思路:switch判断

注意事项:

参考代码:

#include<bits/stdc++.h>

using namespace std;

int main(){

    int a;

    cin>>a;

    switch(a/10){

        case 10:

        case 9:

            putchar('A');

            break;

        case 8:

            putchar('B');

            break;

        case 7:

            putchar('C');

            break;

        case 6:

            putchar('D');

            break;

        default:

            putchar('E');      

    }

}