Question

Read two integers as input and swap them using call by reference, without using a third variable.by c++

Answer 1

Answer:

#include <iostream>

using namespace std;

int main()

{

int a=5, b=10;

cout<<"Before swap a= "<<a<<" b= "<<b<<endl;

a=a*b; //a=50 (5*10)

b=a/b; //b=5 (50/10)

Explanation:

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