Magic in CPP

 This Module is all about pointers and how they can be cleverly employed to solve typical CPP problems.

Given two integers A and B. The task is to swap two numbers. Swapping here means to interchange the values of A and B.
 

Example 1:

Input:
A = 3 
B = 5
Output: 
5 3
Explanation:
Here, A = 3 and B = 5.
After swapping A = 5 and B = 3.

Your Task:
Your task is to complete the two swap() functions, such that values of A and B gets interchanged.

solution:

// { Driver Code Starts
//Initial Template for C++

#include <iostream>
using namespace std;

// Function prototype
void swap(int*, int*);
void swap(int&, int&);


 // } Driver Code Ends
//User function Template for C++

// Function to swap A and B
// using pointers
void swap(int *A, int *B){
    
    // Your code here
    int temp=*A;
    *A=*B;
    *B=temp;
    
}

// Function to swap A and B
// using reference
void swap(int &A, int &B){
  
    // Your code here
     int temp=A;
     A=B;
     B=temp;
  
}