题解 | #判断成绩等级#

#include <iostream>
using namespace std;

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

    // write your code here......
    int level = score/10;
    if(level<0 || level>10)
        cout<<"成绩不合法"<<endl;
    else
    {
        switch (level) {
            case 10:
            case 9:cout<<"优秀"<<endl;break;
            case 8:cout<<"良"<<endl;break;
            case 7:cout<<"中"<<endl;break;
            case 6:cout<<"及格"<<endl;break;
            case 5:
            case 4:
            case 3:
            case 2:
            case 1:
            case 0:cout<<"差"<<endl;
        }
    }
    return 0;
}