Swap Two Numbers Without Temp in C++

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Q. Write a C++ program for Swap Two Numbers without using temp variable.

#include<iostream>       
using namespace std;
  
int main()
{    
	int x, y;
	cout << "Enter two numbers: ";
	cin >> x >> y;
	cout << "Before swapping(interchange) the numbers x= " << x << " y= "  << y << endl;
	x=x+y;
    y=x-y;
    x=x-y;
	cout << "After swapping(interchange) the numbers x= " << x << " y= "  << y << endl;
    return 0;
}
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Q. Write an algorithm to Swap Two Numbers without using temp variable.

1. Start
2. Input two numbers `x` and `y`
3. Display the values of `x` and `y` before swapping
4. Perform swapping using arithmetic operations:
    - Set `x = x + y`
    - Set `y = x - y` (Here, y becomes the original value of x)
    - Set `x = x - y` (Here, x becomes the original value of y)
5. Display the values of `x` and `y` after swapping
6. End
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