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SWAPPING (HARD)

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Computer Club MNNIT :: C/C++/JAVA

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SWAPPING (HARD)

Post  SwitchCase on Wed Aug 13, 2008 4:01 pm

NOW Ur task is still the same..

Except....
U r allowed only 3 statements..
And only one operator.

(PS: DONT BE SMART AND USE -(-b) as the same thing!!!!)

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Re: SWAPPING (HARD)

Post  mnnit.rahul on Wed Aug 13, 2008 5:35 pm

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

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Re: SWAPPING (HARD)

Post  amazon on Wed Aug 13, 2008 7:14 pm

coooooooooool raaaaahhhhuuuuuulllllllllll



oo spam abuse!!!!

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Re: SWAPPING (HARD)

Post  Admin on Sun Aug 17, 2008 5:27 pm

rahul soltuion was cool but u know the above solution fails at a prticular test case ..............
find it out ? Very Happy

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Re: SWAPPING (HARD)

Post  ankurgutpa on Wed Aug 20, 2008 3:01 pm

well i think solution is correct
i 've tried for all test cases
+ +
+ -
+ 0
- 0
- -
it's working fine cheers

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Re: SWAPPING (HARD)

Post  ish_mnnit on Wed Aug 20, 2008 4:13 pm

rahul solution can also be written as--
a^=b^=a^=b
i think it shud also work

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Re: SWAPPING (HARD)

Post  sweetesh singh on Wed Aug 20, 2008 6:08 pm

bhagalpur sir

ab aap hi bata dejie ki kis case me a^b wala soln fail ho rha hai???

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Re: SWAPPING (HARD)

Post  gunendu on Wed Sep 24, 2008 5:24 pm

xor(^) operator will fail when you will have carry in your addition..

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Re: SWAPPING (HARD)

Post  vikas on Fri Sep 26, 2008 12:19 am

.......above method will fail when both variables are equal becase in that case xor operation will give zero.

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Re: SWAPPING (HARD)

Post  amit.mall on Tue Sep 30, 2008 3:59 pm

works only for integers.......

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Re: SWAPPING (HARD)

Post  ankurgutpa on Tue Sep 30, 2008 11:06 pm

@amit
also for characters cheers

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Computer Club MNNIT :: C/C++/JAVA

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