Created
October 4, 2011 16:44
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Ruby Array#bsearch
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| class Array | |
| def bsearch(e, l = 0, u = length - 1) | |
| return if l>u;m=(l+u)/2;e<self[m]?u=m-1:l=m+1;e==self[m]?m:bsearch(e,l,u) | |
| end | |
| end |
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