hdu 2004 成绩转换

成绩转换

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 117938    Accepted Submission(s): 51743

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 <string>
using namespace std;
int main(){
    int score;
    while (cin >> score) {
        if (score >= 0 && score <= 100) 
        {
            if(score >=70){
                if(score >= 80){
                    if (score >= 90)
                        cout << "A" << endl;
                    else 
                        cout << "B" << endl;
                }
                else
                    cout << "C" << endl;
            } else { 
                if (score >= 60)
                    cout << "D" << endl;
                else
                    cout << "E" << endl;
            }
        }
        else
            cout << "Score is error!" << endl;
    }

    //system("pause");
    return 0;
}