C Program to Swap Two Variables Without Using Third Variable

In this program, you will learn how to swap two variables without using third variable. There are five different types of swapping are here-


Example-1

#include<stdio.h>
int main(){
int a=5,b=10;
a=b+a;
b=a-b;
a=a-b;
printf("a= %d b= %d",a,b);
getch();
}

swap two variables without using third variable

Example-2

#include<stdio.h>
int main(){
int a=5,b=10;
a=5;
b=10;
a=a+b-(b=a);
printf("\na= %d b= %d",a,b);
getch();
}

swap two variables without using third variable

Example-3

#include<stdio.h>
int main(){
int a=5,b=10;
a=5;
b=10;
a=a^b;
b=a^b;
a=b^a;
printf("\na= %d b= %d",a,b);
getch();
}

swap two variables without using third variable

Example-4

#include<stdio.h>
int main(){
int a=5,b=10;
a=5;
b=10;
a=b-~a-1;
b=a+~b+1;
a=a+~b+1;
printf("\na= %d b= %d",a,b);
getch();
}

swap two variables without using third variable

Example-5

#include<stdio.h>
int main(){
int a=5,b=10;
a=5,
b=10;
a=b+a,b=a-b,a=a-b;
printf("\na= %d b= %d",a,b);
getch();
}

swap two variables without using third variable