C++ Program to Swap Two Numbers

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C++ Program to Swap Two Numbers
This example contains two different techniques to swap numbers in C programming. The first program uses temporary variable to swap numbers, whereas the second program doesn’t use temporary variables.

Programe :

#include <iostream>
using namespace std;

int main()
{
int a = 7, b = 10, temp;

cout << “Before swapping.” << endl;
cout << “a = ” << a << “, b = ” << b << endl;

temp = a;
a = b;
b = temp;

cout << “\nAfter swapping.” << endl;
cout << “a = ” << a << “, b = ” << b << endl;

return 0;
}

OutPut :

Before swapping.
a = 7, b = 10

After swapping.
a = 10, b = 7

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