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Interview Question for Testing / Quality Assurances


More Questions from This Interview



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2
of 2 vote

(x<<3)-x

- Musheka January 16, 2010 | Flag Reply
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0
of 0 votes

Meaning multipying by 8 then subtracting . Perfect :) Lesser perfect ans:
x + (x << 1) + (x<<2) = x*7

- arnab.banerjee.82@gmail.com January 17, 2010 | Flag
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1
of 1 vote

geeksforgeeks.org/?p=532

- Gautham January 22, 2010 | Flag Reply
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0
of 0 vote

Totally depends on the processor.

- Anonymous January 16, 2010 | Flag Reply
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-1
of 1 vote

x=x*7

- Musheka January 16, 2010 | Flag Reply
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0
of 0 votes

How thoughtful!

- eiffel January 17, 2010 | Flag
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0
of 0 votes

LOL

- Anonymous February 08, 2010 | Flag
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-1
of 1 vote

hahaha..utter stupidity from musheka

- Honey February 18, 2011 | Flag
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0
of 0 votes

As much as this answer looks silly, it may well be true in some cases. Writing x*7 may be the fastest way to multiply by 7 because the compiler will often optimize it to the fastest way for the particular machine.

- eugene.yarovoi July 17, 2012 | Flag


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