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How to swap value without using Temporary Variable ?

Interview question and answer by: Ajay.Kalol | Posted on: 5/8/2012 | Category: Others Interview questions | Views: 698 | | Points: 40
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Answer:

X = 10 Y = 2

X = X + Y; (10 + 2 = 12)
Y = X - Y; (12 - 2 = 10)
X = X - Y; (12 - 10 = 2 )

After this X = 2 AND Y = 10

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