分类：《算法》

Leetcode题目解析（191016）

Leetcode 572：另一个树的子树题目描述给定两个非空二叉树 s 和 t，检验 s 中是否包含和 t 具有相同结构和节点值的子树。s 的一个子树包括 s 的一个节点和这个节点的所有子孙。s 也可以看做它自身的一棵子树。 ...

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Leetcode 2019-10-16 leetcode、算法

[leetcode]题目解析（190524）

valid sudoku 题目描述 Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with the character'.'. 题目解...

474 views

Leetcode 2019-05-24 leetcode、算法

[Leetcode]merge sorted array

merge sorted array 题目描述 Given two sorted integer arrays A and B, merge B into A as one sorted array.Note: You may assume that A has enough space to hold additional elements from B. The number ...

265 views

Leetcode 2019-04-18 leetcode、算法

[leetcode]populating next right pointers in each node

题目描述题目描述 Given a binary tree C++ struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; } ...

321 views

Leetcode 2019-04-15 leetcode、算法

[Leetcode]copy list with random pointer

题目描述 A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.Return a deep copy of the list. 题目解析其实这个题目跟剑...

331 views

Leetcode 2019-04-11 leetcode、算法

leetcode之single-number-ii、Gas station、word break

single-number-ii Given an array of integers, every element appears three times except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implemen...

319 views

Leetcode 2019-04-03 leetcode、算法