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Fix the median_three mehod for quick sort (#1134)

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* Add the section of terminologies.

* fix format

* Fix median_three function for quick sort

* Delete docs/chapter_appendix/terminologies.md

* Update quick_sort.ts

* Update quick_sort.rs

* Update quick_sort.js
This commit is contained in:
Yudong Jin
2024-03-15 01:06:59 +08:00
committed by GitHub
parent 644eaf99ff
commit 9769e14017
12 changed files with 83 additions and 93 deletions
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11
codes/python/chapter_sorting/quick_sort.py
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@ -40,12 +40,11 @@ class QuickSortMedian:
def median_three(self, nums: list[int], left: int, mid: int, right: int) -> int:
"""选取三个候选元素的中位数"""
# 此处使用异或运算来简化代码
# 异或规则为 0 ^ 0 = 1 ^ 1 = 0, 0 ^ 1 = 1 ^ 0 = 1
if (nums[left] < nums[mid]) ^ (nums[left] < nums[right]):
return left
elif (nums[mid] < nums[left]) ^ (nums[mid] < nums[right]):
return mid
l, m, r = nums[left], nums[mid], nums[right]
if (l <= m <= r) or (r <= m <= l):
return mid # m 在 l 和 r 之间
if (m <= l <= r) or (r <= l <= m):
return left # l 在 m 和 r 之间
return right
def partition(self, nums: list[int], left: int, right: int) -> int: