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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	// your code goes here
  5.     #include <stdio.h>
  6. int main(void) {
  7.     int score;
  8.     printf("请输入分数：");
  9.     scanf("%d", &score);
  10.  
  11.     if (score < 0 || score > 100) {
  12.         printf("error!\n");
  13.         return 0;
  14.     }
  15.  
  16.     // 用整数除法把分数分段，简化switch分支
  17.     switch(score / 10) {
  18.         case 10:
  19.         case 9:
  20.         case 8: 
  21.             // 85~100：8/9/10分位，且8开头要≥85
  22.             if (score >= 85) printf("A\n");
  23.             else printf("B\n");
  24.             break;
  25.         case 7: printf("B\n"); break;
  26.         case 6: printf("C\n"); break;
  27.         default: printf("D\n"); // 0~59
  28.     }
  29.     return 0;
  30. }
  31.  
  32. 	return 0;
  33. }
  34.  
Success #stdin #stdout 0s 5312KB
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https://ideone.com/NybwbD
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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