摘要： 原题链接在这里：https://leetcode.com/problems/closest-leaf-in-a-binary-tree/ 题目： Given a binary tree where every node has a unique value, and a target key k, 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/equal-tree-partition/ 题目： Given a binary tree with n nodes, your task is to check if it's possible to partition 阅读全文