F Swapping of two number in CPP using Function | CodeTheta

Swapping of two number in CPP using Function


1. Swapping using third variable / temp variable.
Code:
#include<iostream>
#include<conio.h>
using namespace std;

int SwapFunction(int, int);

int main() {
    int a, b,
result;
    cout<<"Enter first Number: ";
    cin>>a;   
    cout<<"Enter second Number: ";
    cin>>b;
    result = SwapFunction(a, b);
}

int SwapFunction(int x, int y) {
    int temp;
    temp = x;
    x = y;
    y = temp;
    cout<<"After Swapping First Number : "<<x<<endl;
    cout<<"After Swapping Second Number : "<<y<<endl;
}


Output :
Enter first Number: 4
Enter second Number: 3
After Swapping First Number : 3
After Swapping Second Number : 4

2. Swapping without third variable / temp variable.
Code :
#include<iostream>
#include<conio.h>
using namespace std;

int SwapFunction(int, int);

int main() {
    int a, b, result;
    cout<<"Enter first Number: ";
    cin>>a;   
    cout<<"Enter second Number: ";
    cin>>b;
    result = SwapFunction(a, b);
}

int SwapFunction(int x, int y) {
    x = x + y;
    y = x - y;
    x = x - y;
    cout<<"After Swapping First Number : "<<x<<endl;
    cout<<"After Swapping Second Number : "<<y<<endl;
}


Output :
Enter first Number:15
Enter second Number:6
After Swapping First Number :6
After Swapping Second Number :15

IDE Used To Test This Code : DEV C++.

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