Exponential Bounds for the Running Time of a Selection Algorithm
نویسنده
چکیده
A nonrecursive version of this algorithm is of course easy to find. The work done here can be measured by the number of comparisons between elements (these occur only in the step in which S is split into S,, S, and S,). It is known that this algorithm requires f2(n’) comparisons in the worst case. The algorithm runs in average time O(n) (Aho et al. [ 11). In fact, Knuth [lo] has shown that the average number of comparisons is at most
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ورودعنوان ژورنال:
- J. Comput. Syst. Sci.
دوره 29 شماره
صفحات -
تاریخ انتشار 1984