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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.  
  5. 	int a,b;
  6.  
  7. 	scanf("%d", &a);
  8. 	scanf("%d", &b);
  9.  
  10. 	if(((a%4==0)&&(a%100!=0))||(a%400==0)){
  11. 		switch(b){
  12. 			case 1:
  13. 			case 3:
  14. 			case 5:
  15. 			case 7:
  16. 			case 8:
  17. 			case 10:
  18. 			case 12:
  19. 			printf("31日");
  20. 			break;
  21. 			case 2:
  22. 			printf("29日");
  23. 			break;
  24. 			case 4:
  25. 			case 6:
  26. 			case 9:
  27. 			case 11:
  28. 			printf("30日");
  29. 			break;
  30. 		}
  31. 	}
  32. 	else{
  33. 		switch(b){
  34. 			case 1:
  35. 			case 3:
  36. 			case 5:
  37. 			case 7:
  38. 			case 8:
  39. 			case 10:
  40. 			case 12:
  41. 			printf("31日");
  42. 			break;
  43. 			case 2:
  44. 			printf("28日");
  45. 			break;
  46. 			case 4:
  47. 			case 6:
  48. 			case 9:
  49. 			case 11:
  50. 			printf("30日");
  51. 			break;
  52. 	}
  53. 	}	
  54. 	return 0;
  55. }
  56.  
Success #stdin #stdout 0s 5308KB
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31日
https://ideone.com/N58RnZ
language:
C (gcc 8.3)
created:
9 days ago
visibility:
public

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