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  1. #include <stdio.h>
  2.  
  3. union num
  4. {
  5. 	int f;
  6. 	char c[4];
  7. };
  8.  
  9. void printBinary(union num u)
  10. {
  11. 	int i,t,j;
  12.  
  13. 	for(i=sizeof(u)-1; i>=0; i--)
  14. 	{
  15. 		for(j=0,t=128; j<8; j++,t>>=1)
  16. 			printf("%d",(u.c[i]&t)?1:0);
  17. 		printf(" ");
  18. 	}
  19. }
  20.  
  21. int main()
  22. {
  23. 	union num n;
  24. 	n.f=10;
  25. 	printBinary(n);
  26. 	return 0;
  27. }
Success #stdin #stdout 0.01s 1676KB
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stdin
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Standard input is empty
stdout
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00000000 00000000 00000000 00001010
https://ideone.com/i9YCt
language:
C (gcc 8.3)
created:
13 years ago
visibility:
public

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