Swapping two variable without initializing the third variable

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Gleaming Guanaco answered on March 3, 2021 Popularity 8/10 Helpfulness 1/10

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Swapping two variable without initializing the third variable

Comment

#include <iostream>
using namespace std;
int main()
{
    int first_number = 10, last_number = 20;
    first_number = first_number + last_number;
    last_number = first_number - last_number;
    first_number = first_number - last_number;
    cout << first_number << " " << last_number << endl;
    return 0;
}

Popularity 8/10 Helpfulness 1/10 Language cpp

Source: Grepper

Tags: c++ initializing

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Contributed on Nov 08 2022

Gleaming Guanaco

0 Answers Avg Quality 2/10

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swap without using third variable

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// 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;  
}

Popularity 10/10 Helpfulness 4/10 Language c

Source: www.javatpoint.com

Tags: c

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Contributed on Mar 03 2021

Adventurous Antelope

0 Answers Avg Quality 2/10

swap 2 numbers without using 3rd variable

Comments(1)

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)

Popularity 10/10 Helpfulness 4/10 Language whatever

Source: Grepper

Tags: numbers

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Contributed on May 16 2021

Harshit Goyal

0 Answers Avg Quality 2/10

swap two variables

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// Another approach, that doesn't requires to create a third variable,
// but requires more computation

int a = 7;
int b = 2;

a = a ^ b;
b = a ^ b;
a = a ^ b;

// ^ means XOR
// if you want a more concise code, you can do
// a ^= b;
// b ^= a;
// a ^= b;

Popularity 9/10 Helpfulness 4/10 Language whatever

Source: Grepper

Tags: swap

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Contributed on Dec 14 2022

Encouraging Eland

0 Answers Avg Quality 2/10

Swap two variables without the third variable

Comment

let x = 1;
let y = 2;
[x, y] = [y, x]; // x = 2, y = 1

Popularity 9/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Feb 23 2023

moghaazi

0 Answers Avg Quality 2/10

swap of two numbers without using third variable

Comment

a=20;
b=40;
a=a+b;  
b=a-b;
a=a-b;

Popularity 10/10 Helpfulness 3/10 Language whatever

Source: Grepper

Tags: numbers

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Contributed on Oct 20 2021

codeGlue

0 Answers Avg Quality 2/10

Swapping Two Numbers Using Third Variable

Comment

   public static void main(String[] args) {
        int x = 10;
        int y = 20;
        int temp;

        temp = x;
        x = y;
        y = temp;

        System.out.println("x:"+x  +" y:" + y);
    }

Popularity 9/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: java

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Contributed on May 21 2022

Chathumal Sangeeth

0 Answers Avg Quality 2/10

swapping data of two variable without third one

Comment

X= 25 (First number), Y= 23 (second number)
Swapping Logic:
X = X + Y = 25 +23 = 48
Y = X - Y = 48 - 23 = 25
X = X -Y = 48 - 25 = 23
and the numbers are swapped as X =23 and Y =25.

Popularity 8/10 Helpfulness 2/10 Language whatever

Source: www.javatpoint.com

Tags: whatever whateve

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Contributed on Sep 23 2022

Hamza Fayaz

0 Answers Avg Quality 2/10

swap two numbers without using third variable

Comment

var a=window.prompt('enter a number')var b=window.prompt('enter a number')var a=a+b;var b=a-b;var a=a-b;console.log ("value of a is",a);console.log('value of b is',b);

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: pujasharma5431.medium.com

Tags: numbers

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Contributed on Jun 28 2021

Depressed Dotterel

0 Answers Avg Quality 2/10

swap 2 numbers without using 3rd variable

Comment

//Swapping Using Addition and Subtraction(+ & -)
void swapping(int x, int y)
{
    x = x + y;    //1
    y = x - y;    //2
    x = x - y;    //3
    printf("The values of a and b AFTER swapping are a = %d & b = %d \n", x, y);
   
}

//Swapping Using Multiplication and Division(* & /)
void swapping(int x, int y)
{
     x = x * y;   //1
     y = x / y;   //2
     x = x / y;   //3
    printf("The values of a and b AFTER swapping are a = %d & b = %d \n", x, y);
   
}

//Swapping Using Bitwise XOR
void swapping(int x, int y)
{
    x = x ^ y;
    y = x ^ y;
    x = x ^ y;
    printf("The values of a and b AFTER swapping are a = %d & b = %d \n", x, y);
   
}

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: www.scaler.com

Tags: numbers swap using whatever

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Contributed on Sep 22 2021

ShrutiBongale

0 Answers Avg Quality 2/10

swap using third variable

Comment

//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);
}

Popularity 1/10 Helpfulness 1/10 Language c

Source: www.scaler.com

Tags: c swap using

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Contributed on Sep 22 2021

ShrutiBongale

0 Answers Avg Quality 2/10

Swapping two variable without initializing the third variable

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