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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int a,b;
  5.  
  6. 	scanf("%d\n %d" ,&a,&b);
  7.  
  8. 		switch(b){
  9. 			case 2:
  10. 				if(((a % 4 == 0) && !(a % 100 == 0)) || (a % 400 == 0)){
  11. 					printf("29日");
  12. 				}
  13.  
  14. 				else{
  15. 					printf("28日");
  16. 				}
  17. 			break;
  18.  
  19. 			case 4:
  20. 			case 6:
  21. 			case 9:
  22. 			case 11:
  23. 			printf("30日");
  24. 			break;
  25.  
  26. 			case 1:
  27. 			case 3:
  28. 			case 5:
  29. 			case 7:
  30. 			case 8:
  31. 			case 10:
  32. 			case 12:
  33. 			printf("31日");
  34. 			break;
  35.  
  36. 			default :
  37. 			printf("存在しない月だよ");
  38. 			break;
  39. 		}
  40.  
  41. 	return 0;
  42. }
  43.  
Success #stdin #stdout 0s 5268KB
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28日
https://ideone.com/q53AEq
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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