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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int FullAdder(int A, int B)
  5. {
  6.     static int Cr;
  7.     int S;
  8.     if (A|B)
  9.     {
  10.         S=(A^B^Cr)&1;
  11.         Cr=(A&B|Cr&(A^B))&1;
  12.         return (FullAdder(A>>1, B>>1)<<1)|S;
  13.     }
  14.     return Cr;
  15. }
  16.  
  17. int SwapBits(int X)
  18. {
  19.     return ((X&0x55555555)<<1)|((X&0xAAAAAAAA)>>1);
  20. }
  21.  
  22. int main()
  23. {
  24.     printf("%d\n",FullAdder(999,1));
  25.     printf("%x\n",SwapBits(0x1248));
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0s 2292KB
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stdin
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Standard input is empty
stdout
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1000
2184
https://ideone.com/ryZl63
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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