Comments on: Swap two variables using XOR

By: algebra solutions

algebra solutions — Thu, 02 Sep 2010 23:22:09 +0000

algebra solutions…

Wasn’t this topic explained (but in a completely different opinion)?…

By: Anonymous

Anonymous — Sat, 27 Feb 2010 06:52:05 +0000

void main()
{
int a=25,b=15;
a=a+b;
b=a-b;
a=a-b;
b=a+b;
printf(”%d%d”,a,b);
}

By: Sriram

Sriram — Sun, 15 Nov 2009 04:30:17 +0000

Hey guys, what about swaping variables contains string values? All of your solutions will suck… Try this and swap integer or string without third variable… Happy Sensible Coding..

$v = ’sriram’;
$u = ‘lakshmi’;

$v .= $u;
$u = substr($v,0,(strlen($v) – strlen($u)));
$v = substr($v,(strlen($v) – strlen($u)-1), strlen($v));

echo ‘u = ‘ . $u .”;
echo ‘v = ‘ . $v;