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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5. 	char buf[32+1];
  6. 	unsigned u;
  7. 	int n = 0;
  8.  
  9. 	scanf("%u", &u);
  10. 	if (u == 0) {
  11. 		printf("0\n");
  12. 		return 0;
  13. 	}
  14.  
  15. 	while (u) {
  16. 		buf[n++] = '0' + (u & 1);
  17. 		u >>= 1;
  18. 	}
  19.  
  20. 	while (0 < n) {
  21. 		printf("%c", buf[--n]);
  22. 	}
  23. 	printf("\n");
  24. 	return 0;
  25. }
  26.  
Success #stdin #stdout 0.01s 1680KB
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https://ideone.com/s7wpg
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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