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  1. #include <stdio.h>
  2. int main(void){
  3. int a;
  4. printf("1以上12以下の整数を入力して下さい");
  5. scanf("%d",&a);
  6. switch(a)
  7. {
  8.  
  9. 	case 1:
  10. 	case 3:
  11. 	case 5:
  12. 	case 7:
  13. 	case 8:
  14. 	case 10:
  15. 	case 12:
  16. 	printf("日数は31日");
  17. 	break;
  18.  
  19. 	case 4:
  20. 	case 6:
  21. 	case 9:
  22. 	case 11:
  23. 	printf("日数は30日");
  24. 	break;
  25. 	case 2:
  26. 	printf("日数は28日");	
  27. 	break;
  28.  
  29. 	default:
  30. 	printf("1～12の整数を入力してください");
  31. 	break;
  32. }
  33. return 0;
  34.  
  35.  
  36. }
Success #stdin #stdout 0s 5320KB
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1以上12以下の整数を入力して下さい日数は31日
https://ideone.com/uOclZW
language:
C (gcc 8.3)
created:
9 hours ago
visibility:
public

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