成绩转换

来源：互联网发布：剑灵门派时装数据编辑：程序博客网时间：2024/04/30 07:06

Problem Description
输入一个百分制的成绩t，将其转换成对应的等级，具体转换规则如下：
90~100为A;
80~89为B;
70~79为C;
60~69为D;
0~59为E;
Input
输入数据有多组，每组占一行，由一个整数组成。
Output
对于每组输入数据，输出一行。如果输入数据不在0~100范围内，请输出一行：“Score is error!”。
Sample Input

56
67
100
123

Sample Output

E
D
A
Score is error!

#include<iostream>#include<cstdio>#include<cstring>#include<iomanip>#include<cmath>#include<map>#include<set>#include<queue>#include<cstdio>#include<algorithm>#include<string>#include<sstream>#include<ctime>#define ll long long#define INF 0x3f3f3f3fint main() {    ios::sync_with_stdio(false);    int a;    while(cin>>a){        if(a>=0&&a<=100){            if(a>=90) cout<<"A";            else if(a>=80) cout<<"B";            else if(a>=70) cout<<"C";            else if(a>=60) cout<<"D";            else cout<<"E";            cout<<endl;        }else{            cout<<"Score is error!"<<endl;        }    }    return 0;}

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