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  1.  
  2. /* Write a program to swap a nibble */
  3. //0101
  4. #include <stdio.h>
  5.  
  6. int main(void) {
  7. 	// your code goes here
  8. 	int num=23;
  9. 	int res= ((num&0x0F<<4) | (num&0xF0>>4));
  10. 	printf("%x", res);
  11. 	return 0;
  12. }
  13.  
  14. /*
  15. 0101 & 1111 = 0101 <<4 = 0101 0000
  16. 0101 & 1111 = 0101 >>4 = 0000 0000
  17. -----------------------------------
  18.                          0101 0000
  19.                          ----------
  20.                          ---------
  21. */
Success #stdin #stdout 0s 5316KB
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https://ideone.com/AjRcad
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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