题解 | #判断成绩等级#

#include <iostream>
using namespace std;

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

    // write your code here......
    if(score<0||score>100)
    {
        cout<<"成绩不合法"<<endl;
    }
    else if(score>=90&&score<=100)
    {
        cout<<"优秀"<<endl;
    }
    else if(score>=80&&score<=89)
    {
        cout<<"良"<<endl;
    }
    else if(score>=70&&score<=79)
    {
        cout<<"中"<<endl;
    }
    else if(score>=60&&score<=69)
    {
        cout<<"及格"<<endl;
    }
    else
    {
        cout<<"差"<<endl;
    }

    return 0;
}