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Swap 2 variables without using 3rd variable


Code ResourceAuthor: deepu08  

Difficulty Level: Beginner

Published: 3rd Jun 2009   Read: 2608 times  

Filed in: C
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This program swaps 2 varibles with out using of 3rd variable.

 


Sample Code
  1. #include<stdio.h>
  2. void main()
  3. {
  4.  int a,b;
  5.  printf("enter 2 numbers");
  6.  scanf("%d %d",&a,&b);
  7.  printf("nthe 2 numbers are %d %d",a,b);
  8.  a=a^b;
  9.  b=a^b;
  10.  a=a^b;
  11.  printf("n the 2 numbers are %d %d",a,b);
  12. }
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