python 快速排序

最近在上网课,复习了数据结构这一块内容,对快速排序又有了新的认识,代码的精简正是进步的表现。感谢internet

import random


def quicksort(array):
    if len(array) < 2:
        return array
    else:
        pivot_index = 0
        pivot = array[pivot_index]
        less_part = [
            i for i in array[pivot_index + 1:] if i <= pivot
        ]
        great_part = [
            i for i in array[pivot_index + 1:] if i > pivot
        ]
        return quicksort(less_part) + [pivot] + quicksort(great_part)


if __name__ == '__main__':
    array = [random.randint(1, 20) for i in range(10)]
    s_a = quicksort(array)
    print(s_a)

  输出结果: 

>>>   [1, 3, 3, 5, 5, 9, 9, 13, 13, 17]

posted @ 2019-03-15 00:37  INSPASSION  阅读(102)  评论(0编辑  收藏  举报