Swaping Two Numbers

Code ResourceAuthor: prabha

Difficulty Level:

Published: 12th Sep 2007 Read: 6193 times

Filed in: C++

Add Comment

Sponsored Links

Swaping of two Numbers without 3rd variable in C++.

Sample Code

void main()
{
int a,b;
printf("Enter any two no.s");
scanf("%d%d",&a,&b);
printf("nBefore swaping a=%d,b=%d",a,b);
a=a+b;
b=a-b;
a=a-b;
printf("n After swaping a=%d,b=%d",a,b);
getch();
}

Next Article: C++ Elliptic Curve library

Comments

Great and logically correct

Comment posted by: babu_krishi on 2007-10-09T05:37:58

1) int main() invokes undefined behavior.
2) The method poses overflow problems, so swapping two numbers which are greater than half of the limited int size gives incorrect result.
A better method for swapping two integers a and b is
a^=b;
b^=a;
a^=b;

Comment posted by: jagatsastry on 2007-10-22T02:03:48

Popular Coders

#	Coder Name	Hits
1.	Priya	36671
2.	chowsys	14958
3.	bipin_vaylu	13579
4.	raghu.mohindru	8719
5.	Subashini	7235
6.	vimal.fire	6981
7.	rachittyagi	6630
8.	venki_madesh	6209
9.	prabha	6194
10.	vipin gupta	5907

Active Coders

#	Coder Name	Codes
1.	chowsys	4
2.	Priya	2
3.	vipin gupta	1
4.	Mehedi Shams Rony	1
5.	cddhu	1
6.	Subashini	1
7.	venki_madesh	1
8.	prabha	1
9.	bipin_vaylu	1
10.	vimal.fire	1

C++ Code Base

Swaping Two Numbers

Latest Code Samples

Popular Code Samples

Related Code Samples

Post Your Comment:

Comments

Popular Coders

Active Coders

Refined Tags