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  1. #include <stdio.h>
  2.  
  3. int main(){
  4. 	int ngay,thang,nam,ngaymax,thangmax,nammax;
  5. 	printf("nhap vao ngay : ");
  6. 	scanf("%d", &ngay);
  7. 	printf("nhap vao thang 2: ");
  8. 	scanf("%d", &thang);
  9. 	printf("nhap vao nam : ");
  10. 	scanf("%d", &nam);  
  11. 	if(ngay<0 || 12<thang<0 || nam<0 || ngay<0 || ngay >31){
  12. 		printf("khong hop le");
  13. 	}
  14. 	else{
  15.  
  16. 		switch (thang) {
  17. 		case 1 :
  18. 			case 3 :
  19. 				case 5 :
  20. 					case 7 :
  21. 						case 8 :
  22. 							case 10 :
  23. 								case 12 :
  24. 									ngaymax=31;
  25. 										break;
  26.  
  27. 		case 2:
  28. 			{
  29. 				if(nam%4==0)
  30. 					ngaymax=29;
  31. 				else
  32. 					ngaymax=28;
  33. 			break;
  34. 			}
  35. 		case 4 :
  36. 			case 6 :
  37. 				case 9 :
  38. 					case 11 :
  39. 			ngaymax=30;
  40. 			break;
  41. 		}
  42. 		if(ngay<ngaymax)
  43. 			printf("hop le ngay");
  44. 		else
  45. 			printf("khong hop le ngay"); 
  46. 	}
  47. }
Success #stdin #stdout 0s 2116KB
comments (?)
stdin 
Standard input is empty
stdout 
nhap vao ngay : nhap vao thang 2: nhap vao nam : khong hop le
https://ideone.com/AcN8Tl
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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