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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int a;
  5. scanf("%d",&a);
  6. switch(a){
  7. case 1:
  8. case 3:
  9. case 5:
  10. case 7:
  11. case 8:
  12. case 10:
  13. case 12:
  14. printf("31日です\n");
  15. break;
  16. case 2:
  17. printf("28or29日です\n");
  18. break;
  19. case 4:
  20. case 6:
  21. case 9:
  22. case 11:
  23. printf("30日です/n");
  24. default:
  25. printf("正しい月を入力してください\n");
  26. }
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0.01s 5304KB
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31日です
https://ideone.com/Zwmbpk
language:
C99 (gcc 8.3)
created:
5 days ago
visibility:
public

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