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  1. #include <stdio.h>
  2.  
  3. unsigned int rightrot(unsigned int x, unsigned int n)
  4. {
  5.     unsigned int i, rmb;
  6.  
  7.     for(i = 0; i < n; ++i)
  8.     {
  9.         // get right-most bit
  10.         rmb = x & 1;
  11.  
  12.         // shift 1 to right
  13.         x = x >> 1;
  14.  
  15. 		// if right-most bit is set, set left-most bit
  16.  
  17.         if (rmb == 1)
  18.             x = x | (~0u ^ (~0u >> 1) );
  19.     }
  20.  
  21.     return x;
  22. }
  23.  
  24. int main(void) {
  25. 	printf("%u\n", rightrot(122, 2));
  26. 	return 0;
  27. }
  28.  
Success #stdin #stdout 0s 4764KB
comments (?)
stdin 
Standard input is empty
stdout 
2147483678
https://ideone.com/7zPTQk
language:
C99 (gcc 8.3)
created:
4 years ago
visibility:
public

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