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suresh bhandari


{ City } agra
< Country > india
* Profession * sat
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Question { ADP, 234077 }

How to swap two variables, without using third variable ?


Answer

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a=a*b
b=a/b
a=a/b
---------------------
a=a+b
b=a-b
a=a-b
----------------------
a = a Xor b
b= a Xor b
a= a Xor b
----------------------
all above three methods are correct, i hv checked...

Is This Answer Correct ?    2 Yes 1 No