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Saturday, November 15, 2014

Program to Swap two values without third variable in C++.

Swapping without third varible


Code Box
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/*program to swap two values without using third variable */

#include<iostream.h>
#include<conio.h>
void main()
{
int a,b,temp;
clrscr();

cout<<"\nEnter two numbers :";
cout<<"\nEnter first number a= ";
cin>>a;

cout<<"\nEnter second number b= ";
cin>>b;

cout<<"\nValues before swapping a= "<<a<<" & b= "<<b;

a=a+b;   //swapping
b=a-b;
a=a-b;

cout<<"\n\nValues after swapping a= "<<a<<" & b= "<<b;

getch();
}

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