/*
成绩转换
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 140424 Accepted Submission(s): 61308
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 <stdio.h>
int main(void)
{
int t = 0;
while(scanf("%d",&t) != EOF)
{
if(t > 100 || t < 0)
printf("Score is error!\n");
else if(t <= 59)
printf("E\n");
else if(t <= 69)
printf("D\n");
else if(t <= 79)
printf("C\n");
else if(t <= 89)
printf("B\n");
else if(t <= 100)
printf("A\n");
}
return 0;
}