题解 | #判断成绩等级#

#include <iostream>
using namespace std;

int main() {
    
    int score;
    cin >> score;

    // write your code here......
    int n=score/10;
    switch (n) {
        case 1:case 2:case 3:case 4:case 5:cout<<"差";break;
        case 6:cout<<"及格";break;
        case 7:cout<<"中";break;
        case 8:cout<<"良";break;
        case 9:case 10:cout<<"优秀";break;
        default:cout<<"成绩不合法";break;
    }

    return 0;
}