出典:Wiktionary
出典:『Wiktionary』 (2012/09/11 22:13 UTC 版)
bucket sort (複数形 bucket sorts)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/29 18:46 UTC 版)
Bucket sort, or bin sort, is a sorting algorithm that works by partitioning an array into a number of buckets. Each bucket is then sorted individually, either using a different sorting algorithm, or by recursively applying the bucket sorting algorithm. It is a distribution sort, and is a cousin of radix sort in the most to least significant digit flavour. Bucket sort is a generalization of pigeonhole sort. Since bucket sort is not a comparison sort, the O(n log n) lower bound is inapplicable. The computational complexity estimates involve the number of buckets.