二叉树（binary tree）
在写这篇文章之前说一下数据结构和算法这个系列，这个系列包含了很多东西，比如啥子排序，线性表，广义表，树，图这些大家都是知道的，但是这些东西我们学了之后工作中能用到的又有多少呢，据我所知绝大部分公司，一 ...
原文：[LeetCode] 979. Distribute Coins in Binary Tree 在二叉树中分配硬币
You are given therootof a binary tree withnnodes where eachnodein the tree hasnode.valcoins and there arencoins total. In one move, we may choose two adjacent nodes and move one coin from one node to ...
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