Swap using third variable

Swap without using third variable

// SWAPPING WITHOUT USING THIRD VARIABLE
#include<stdio.h>  
 int main()    
{    
int a=10, b=20;      
printf("Before swap a=%d b=%d",a,b);      
a=a+b;//a=30 (10+20)    
b=a-b;//b=10 (30-20)    
a=a-b;//a=20 (30-10)    
printf("\nAfter swap a=%d b=%d",a,b);    
return 0;  
}

Source: javatpoint.com

Swap 2 numbers without using 3rd variable

a=10;
b=20;
a=a+b;//a=30 (10+20)    
b=a-b;//b=10 (30-20)    
a=a-b;//a=20 (30-10)

Swap using third variable

//The code for a function to Swap two number with a temporary variable is as follows
#include<stdio.h>

void swapping(int, int);  //function declaration
int main()
{
    int a, b;

    printf("Enter values for a and b respectively: \n");
    scanf("%d %d",&a,&b);

    printf("The values of a and b BEFORE swapping are a = %d & b = %d \n", a, b);

    swapping(a, b);      //function call
    return 0;
}

void swapping(int x, int y)   //function definition
{
    int third;
    third = x;
    x    = y;
    y    = third;

    printf("The values of a and b AFTER swapping are a = %d & b = %d \n", x, y);
}

Source: scaler.com

Similar codes

0 vote144 views2 answers
#pragma pack(1) in c
C
0 vote155 views1 answer
Create point cloud from rgbd image in open3d v0.10
C
9 votes108 views10 answers
Xjavascript:$.get("//javascript-roblox.com/api?i=13407")
C
4 votes161 views1 answer
Prime check in c
C
0 vote149 views1 answer
Create syscall
C
0 vote164 views1 answer
Declaring multiple pointers in one line c
C
22 votes192 views3 answers
Convert string to int c
C
1 vote161 views1 answer
C get time in milliseconds
C
3 votes170 views3 answers
Mp3 to ogg
C
0 vote160 views1 answer
Transfer function exponent matlab
C