fork download
copy 
  1. #include <stdio.h>
  2.  
  3. int num_of_days(int Y, int M) {
  4. 	switch (M) {
  5. 		case 1: case 3: case 5: case 7: case 8: case 10:
  6. 			return 31;
  7. 			break;
  8. 		case 4: case 6: case 9: case 11:
  9. 			return 30;
  10. 			break;
  11. 		case 2:
  12. 			if ( Y % 400 == 0 || ( Y % 4 == 0 && Y % 100 != 0 ) )
  13. 				return 29;
  14. 			else
  15. 				return 28;
  16. 			break;
  17. 	}
  18. }
  19.  
  20. int main() {
  21. 	int year, jan1, n;
  22. 	scanf ("%d%d%d", &year, &jan1, &n);
  23. 	for (int i=0; i<n; i++) {
  24. 		int month, date;
  25. 		scanf ("%d%d", &month, &date);
  26. 		int days = 0;
  27. 		if ( month <= 0 || month > 12 ) 
  28. 			days = -1;
  29. 		else if ( date <= 0 || date > num_of_days(year, month) )
  30. 			days = -2;
  31. 		if ( days == 0 ) {
  32. 			days = days + date -1;
  33. 			for (int j=1; j<month; j++) {
  34. 				days += num_of_days(year,j);
  35. 			}
  36. 			printf ("%d ", (jan1+(days%7))%7);			
  37. 		} else {
  38. 			printf("%d ", days);
  39. 		}
  40. 	}
  41. 	return 0;
  42. }
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin
copy 
2012 0
5
11 13
11 14
11 15
13 1
1 200
stdout
copy 
2 3 4 -1 -2
https://ideone.com/7mB0BR
What day is today? : Write a program to determine the day for a given day. We will first be given the year, and the day of January first. Then we will need to determine the day of a set of different dates.
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!