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Microsoft Interview Question for Software Engineer in Tests


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of 0 vote

For ( i = 1 to N)
{
r = Random ( i+1, N)
Swap(i,R) // value @ i and Value @ r
}

- Anonymous May 11, 2010 | Flag Reply
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of 0 votes

I think it should be random(i,N), since it is also possible that we do not need to change i.

- chenming831@hotmail.com May 16, 2010 | Flag
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of 0 vote

We can use Knuth's algo

- erappy July 07, 2010 | Flag Reply
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0
of 0 vote

To shuffle an array a of n elements:
for i from n − 1 to 1 do
j ← random integer with 0 ≤ j ≤ i
exchange a[j] and a[i]

( source: Wikipedia, Fisher–Yates shuffle )

- erm October 06, 2010 | Flag Reply


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