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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int sumAllDigits(int n) {
  5.     return abs((n-1) % 9 + 1);
  6. }
  7.  
  8. int main(void) {
  9. 	printf("-34: %d\n", sumAllDigits(-34));
  10. 	printf("-12: %d\n", sumAllDigits(-12));
  11. 	printf("-1: %d\n", sumAllDigits(-1));
  12. 	printf(" 0: %d\n", sumAllDigits(0));
  13. 	printf(" 1: %d\n", sumAllDigits(1));
  14. 	printf(" 12: %d\n", sumAllDigits(12));
  15. 	printf(" 34: %d\n", sumAllDigits(34));
  16.  
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0s 4436KB
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stdin
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Standard input is empty
stdout
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-34: 7
-12: 3
-1: 1
 0: 0
 1: 1
 12: 3
 34: 7
https://ideone.com/uOKWXh
language:
C99 (gcc 8.3)
created:
7 years ago
visibility:
public

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