Leetcode 230. Kth Smallest Element in a BST
Given a binary search tree, write a function kthSmallest to find the kth smallest element in it.求一个二叉搜索树的第k小值。题目链接：https://leetcode.com/problems/kth-smallest-element-in-a-bst/ 先来看下二叉搜索树的性质，对于任意....
LeetCode 378. Kth S Element in a Sorted Matrix
DescriptionGiven a n x n matrix where each of the rows and columns are sorted in ascending order, find the kth smallest element in the matrix.Note that it is the kth smallest element in the sorted or....
LeetCode 215. Kth Largest Element in an Array
DescriptionFind the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.Example 1:Input: [3,2,1,5,6,4] and k = 2Output:....
[LeetCode]230.Kth Smallest Element in a BST
题目 Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note: You may assume k is always valid, 1 ≤ k ≤ BST’s total elements. Follow up: What if the ...
[LeetCode] Kth Largest Element in an Array 数组中第k大的数字
Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. For example, Given [3,2,1,5,6,4] and k = 2,...
[LeetCode] Kth Smallest Element in a BST 二叉搜索树中的第K小的元素
Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note: You may assume k is always valid, 1 ≤ k ≤ BST's total elements. Follow up: W...
[LeetCode] Kth Smallest Element in a Sorted Matrix 有序矩阵中第K小的元素
Given a n x n matrix where each of the rows and columns are sorted in ascending order, find the kth smallest element in the matrix. Note that it is the kth smallest element in the ...
[LeetCode] Kth Largest Element in an Array
Well, this problem has a naive solution, which is to sort the array in descending order and return the k-1-th element. However, sorting algorithm gives O(nlogn) complexity. Suppose ...
[LeetCode] Kth Smallest Element in a BST
This link suggests a concise C++ recursive solution. The original code may be hard to understand at first and I have rewritten the code below. You may need to run some examples with it to see how it ....
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