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  1. #include <stdio.h>
  2.  
  3. void tohex(int n) {
  4. 	if(n==0) {
  5. 		return 0;
  6. 	} else {
  7. 		tohex(n/16);
  8. 		if(n%16<10) {
  9. 			printf("%d",n%16);
  10. 		} else if(n%16==10) {
  11. 			printf("A");
  12. 		} else if(n%16==11) {
  13. 			printf("B");
  14. 		} else if(n%16==12) {
  15. 			printf("C");
  16. 		} else if(n%16==13) {
  17. 			printf("D");
  18. 		} else if(n%16==14) {
  19. 			printf("E");
  20. 		} else if(n%16==15) {
  21. 			printf("F");
  22. 		}
  23. 	}
  24. }
  25.  
  26. int main(void) {
  27. 	int n;
  28. 	scanf("%d",&n);
  29. 	tohex(n);
  30. 	return 0;
  31. }
  32.  
Success #stdin #stdout 0s 5260KB
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1E
https://ideone.com/n6vUtR
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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