202002-22 [LeetCode每日一题]105. Construct Binary Tree from Preorder and Inorder Traversal 题目如下: Given preorder and inorder traversal of a tree, construct the binary tree. eg: preorder = [3,9,20,15,7] inorder = [9,3,15,20,7] re.... Read More >
202002-21 [LeetCode每日一题]101. Symmetric Tree 题目如下: Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree [1,2,2,3,4,4,3] i.... Read More >
202002-20 [LeetCode每日一题]100. Same Tree 题目如下: Given two binary trees, write a function to check if they are the same or not. Two binary trees are considered the same if they are structurall.... Read More >
202002-19 [LeetCode每日一题]99. Recover Binary Search Tree 题目如下: Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. LeetCode-99 Recover Binary.... Read More >