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[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 assum…
[leetcode]n queens ii
n queens ii 题目描述 Follow up for N-Queens problem.Now, instead outputting board configurations, return the total number of…
济南市生态环境局关于作出《济莱高铁项目前期工作筹备组新建济南至莱芜高速铁路项目环境影响报告书》审批决定的公告
根据《建设项目环境影响评价政府信息公开指南（试行）》及建设项目环境影响评价审批程序的有关规定，经审查，2019年4月10日，我局对济莱高铁项目前期工作筹备组新建济南至莱芜高速铁路项目环境影响评价文件作出审批决定（审批文号：济环报告书〔201…
[leetcode]unique binary search trees
题目描述 Given n, how many structurally unique BST's (binary search trees) that store values 1...n?For example, Given n = 3,…
[leetcode]roman to integer（罗马数字转整数）
题目描述 Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999. 题目解析 罗马数…
[leetcode]Same Tree
题目描述 Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if…
[leetcode]populating next right pointers in each node
题目描述 题目描述 Given a binary tree [crayon-5cb8904347050555723017/] Populate each next pointer to point to its next right nod…
[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 t…
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. Not…