Write a program to swap values of two variables with and without using third variable.

Asked by Last Modified  

248 Answers

Follow 21
Answer

Please enter your answer

Suman Saurabh

A mathematics enthusiast, B.Sc. (Maths), M.Sc (Pure Maths) PhD Maths (Pursuing).

I assume you know Python 3, so I'll answer using that, similar can be done in other languages.1) #suppose you want to switch values of a and b temp = a #we create a temp variable which will store the value of a a = b; b = temp#Now, if we hadn't created temp variable then b would take the value of a but...
read more
I assume you know Python 3, so I'll answer using that, similar can be done in other languages.1) #suppose you want to switch values of a and b temp = a #we create a temp variable which will store the value of a a = b; b = temp#Now, if we hadn't created temp variable then b would take the value of a but mind that a has a value of b, so b will take the value of a which is not what you want.2) There is another way and that is using tuples it's most easy youdon't need to make any 3rd variable. it's simply:a,b = b, a #you can add parenthesis if you want. that's it you've swapped the values. read less
Comments
Dislike Bookmark

Tutor

If the kid is not ready to sit, it means he has logical thinking. Try to teach him in taking real-life examples like discussion sums in which you can include his name and his friends. In this way, he will be taking an interest.
1 Comments
Dislike Bookmark

Student who can understand problems of other students better

Enter value of x,y than x = x+y than y = x-y than x = x-y print swapped value x,y.
Comments
Dislike Bookmark

Programming Language Instructor in C, C++, JAVA.

If you are coding in C++ language then this will help you: #include<iostream.h> int main(){ int a=10, b=20; a=a+b; b=a-b; a=a-b; cout<<a<<" "<<b; return 0; }
Comments
Dislike Bookmark

Certified Tamil Teacher with 25 Years of Professional Teaching Experience

With 3rd Variable: int temp, a, b; temp = a; a = b; b = temp; Without 3rd Variable: int a,b; a = a + b; b = a - b; a = a - b;
Comments
Dislike Bookmark

Working as a Data Scientist in Bangalore, India

Python script first = 10 second = 20 print(first, second) first,second = second, first print(first, second) For any further queries, contact me
Comments
Dislike Bookmark

With third variable Swap(a,b): c=a a=b b=c Without third variable Swap(a,b): a = a+b b= a-b a= a-b
read more
With third variable Swap(a,b): c=a a=b b=c Without third variable Swap(a,b): a = a+b b= a-b a= a-b read less
Comments
Dislike Bookmark

Investment in education gives the best return.

I am using python! >> A = 2 >> B = 3 >> A = A + B # A = 5 >> B = A - B # 5-3 = 2, now ,B = 2 >> A = A - B # 5-2 = 3, now ,A = 3
Comments
Dislike Bookmark

Programming is an creative Art . I help students to be creative artist by learning coding skill.

A=2 B=4 A=A+B B= A-B A=A-B
Comments
Dislike Bookmark

BEST URBAN PRO TUTOR PARTNER

#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; } Before swap a=10 b=20 After swap a=20...
read more
#include<stdio.h> intmain() { inta=10,b=20; printf("Beforeswapa=%db=%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("\nAfterswapa=%db=%d",a,b); return0; } Before swap a=10 b=20 After swap a=20 b=10 read less
Comments
Dislike Bookmark

View 246 more Answers

Related Questions

What is least integer function Difference between greatest integer function and least integer function
contact us for more details
Vigyan
What is capital of japan?
Its tokyo
Rahul
Important question of Atom and nuclie 1 Find expression for atomic radius 2 Find expression for energy 3 what is deBroglie equation
the de Broglie wavelength of a moving particle is equal to the Planck constant divided by the momentum of the particle.
Abdhesh
1 0
6
Divide 30 by half and add ten.. What do you get?
70
Chetan S.
Which is the best Book for I PUC for Karnataka Board in Science Stream to score Excellent marks. If any body could help me with that mays I could be glad to you. I need to purchase the books immediately so people please reply as soon as possible.
Go for Boscos or excellent series. They are good.
Krishna

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Most valuable learning tip - Keep mind fresh!
Before sitting to read, keep your mind fresh. Remove all unnecessary thoughts. Then only things will get register in mind!! All the best..
C

Ca. Cs. Mitali Trivedi

0 0
0
Today Is Demonetisation. What is Next?
Mr. Modi taught us the term "Demonetisation". I need not to write its meaning as most of us have learned its true meaning through practical experience. Impact of Demonetisation: 1. Dollar Rate conversion...

Venkatesh

0 0
0
A BASIC OUTLINE ON ECOLOGY AND CLIMATE CHANGE
Ecology on the whole is all about relationship and function of biological things and environment. Primarily ecology has different level of hierarchy for better understanding of its own, which are as follows: Global...

Balaji Kasirajan

0 0
0
How pass a Journal Entry-Class 11, Book-Keeping and Accountancy
Transaction - Started Business with Cash

Rajiv Vadera

0 0
0
The Basic about modeling anything into CAD
The most basic problem that a beginner designer faces is - " From where to start" Have you ever wondered while starting to design an object to where should I start from or How am I suppose to know...

Ishan Bajpai

0 0
0

Recommended Articles

How To Choose The Right School For Children?

Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...

Read full article >

6 Exam Hall Tips To Follow, For Every Good Student

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

Science, Arts Or Commerce - Which One To Go For?

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

Top Benefits of e-Learning

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

Find Tution near you
Tution in Delhi
Tution in Bangalore
Tution in Hyderabad
Tution in Kolkata
Tution in Chennai
Tution in Mumbai
Tution in Lucknow
Tution in Pune
Tution in Noida
Tution in Jaipur
Online Tuition Classes

Looking for Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you