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  1. #include <stdio.h> 
  2. int main() {
  3. 	int a; 
  4.     printf("１以上１２以下の整数を入力してください：\n");
  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\n");
  15. break;
  16.  
  17. 	case 4:
  18. 	case 6:
  19. 	case 9:
  20. 	case 11:
  21. printf("30日\n");
  22. break;
  23. 	case 2:
  24. printf("28日または29日\n");
  25. break;
  26. }
  27. return 0;}
Success #stdin #stdout 0.01s 5320KB
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１以上１２以下の整数を入力してください：
31日
https://ideone.com/dOVw7c
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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