Using the masters method

Posted by Roarke on Stack Overflow See other posts from Stack Overflow or by Roarke
Published on 2010-06-10T04:01:52Z Indexed on 2010/06/10 4:12 UTC
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On my midterm I had the problem:

t(n) = 8T(n/2) +n^3

and I am supposed to find its big theta notation using either the masters or alternative method. So what i did was

a = 8, b = 2 k = 3

log8 (base 2) = 3 = k

therefore, T(n) is big theta n^3. I got 1/3 points so i must be wrong. What did I do wrong?

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