【ACM】hdu_2004_成绩转换_201307261516

成绩转换
Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 57281    Accepted Submission(s): 24928

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()
{int n;
 while(scanf("%d",&n)!=EOF)
 {if(90<=n&&n<=100) printf("A ");
  if(80<=n&&n<=89) printf("B ");
  if(70<=n&&n<=79) printf("C ");
  if(60<=n&&n<=69) printf("D ");
  if(0<=n&&n<=59) printf("E ");
  if(n<0||n>100) printf("Score is error! ");
  }
 return 0;
}

#include <stdio.h>
int main()
{int n;
 while(scanf("%d",&n)!=EOF)
 {
  if(90<=n&&n<=100) printf("A ");
  else if(80<=n&&n<=89) printf("B ");
  else if(70<=n&&n<=79) printf("C ");
  else if(60<=n&&n<=69) printf("D ");
  else if(0<=n&&n<=59) printf("E ");
  else printf("Score is error! ");
  }
 return 0;
}