On Jul 15, 2009, at 11:19 PM, Steve Kroon wrote:
This code should work with "r -= weights[i++]" in the loop body, and comes down to a linear search through
You're right -- I forgot to increment i.
2009/7/16 Peter Drake <dr...@lclark.edu> I must be missing something. Isn't the obvious trick: int r = random(<sum of weights>); int i = 0; while (r > weights[i]) { r -= weights[i]; } return i; This way, you only have to generate one random number.
Peter Drake http://www.lclark.edu/~drake/
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