Given an integer array, sort it in ascending order. Use selection sort, bubble sort, insertion sort or any O(n2) algorithm. Example Given [3, 2, 1, 4, 5], return [1, 2, 3, 4, 5]. 这道题让我们实现最基本的几个O(n2)的排序算法,选择排序,冒泡排序和插入排序,都是最基本的排序算法.我们一个一个来看,首先来看冒泡排序,…
Given an integer array, sort it in ascending order. Use quick sort, merge sort, heap sort or any O(nlogn) algorithm. Example Given [3, 2, 1, 4, 5], return [1, 2, 3, 4, 5]. 快速排序是排序算法中比较重要一种,也是经常容易考的一种排序算法,务必要掌握好.快排的优点是其平均时间复杂度为O(nlgn),这样在给大数据集排序的时候,…
Sort a linked list in O(n log n) time using constant space complexity. Have you met this question in a real interview? Yes Example Given 1->3->2->null, sort it to 1->2->3->null. Challenge Solve it by merge sort & quick sort separatel…