fork download
copy 
  1. #include<stdio.h>
  2.  
  3. typedef char bit;
  4. bit carry = 0;
  5. bit halfadd( bit A, bit B ){
  6.     carry = A & B;
  7.     return A ^ B;
  8. }
  9. bit fulladd( bit A, bit B ){
  10.     bit xor = A ^ B;
  11.     bit ret = carry ^ xor;
  12.     carry = (carry & xor) | (A & B);
  13.     return ret; 
  14. }
  15.  
  16. void fillNum( int num, bit *array ){
  17.     int i;
  18.     for( i = 0; i < 32; ++ i ){
  19.         array[i] = ( num >> i ) & 1;
  20.     }
  21. }
  22.  
  23. int main(){ 
  24.     bit num1[32] = {0}, num2[32] = {0};
  25.     int A = 64620926, B = 1531529858;
  26.     fillNum( A, num1 );
  27.     fillNum( B, num2 );
  28.  
  29.     int r = 0;
  30.     bit tmp = 0;
  31.     // bit tmp = halfadd( num1[0], num2[0] );
  32.     // putchar( tmp ? '1' : '0' );
  33.     // r = tmp;
  34.     int i;
  35.     for( i = 1; i < 32; ++i ){
  36.         tmp = fulladd( num1[i], num2[i] );
  37.         r += tmp << i;
  38.         putchar( tmp ? '1' : '0' );
  39.     }
  40.     putchar( carry ? '1' : '0' );
  41.     printf("\n%d\n\n%d + %d = %d", r, A, B, A+B);
  42.     return 0;
  43. }
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
00000000010101011000100111110100
1596150784

64620926 + 1531529858 = 1596150784
https://ideone.com/17GFOs
language:
C (gcc 8.3)
created:
9 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!