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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int arr[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
  5. 	int cumm = -1, m;  /* Parity would make cumm = 0 */
  6. 	for(m = 1; m <= 12; ++m) {
  7. 		const int parity = (m < 3);
  8. 		printf("%d\n", (cumm + parity)% 7);
  9. 		cumm += arr[m - 1];
  10. 	}
  11. 	return 0;
  12. }
  13.  
Success #stdin #stdout 0s 2248KB
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https://ideone.com/D6FX3K
language:
C (gcc 8.3)
created:
9 years ago
visibility:
secret

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