https://www.nowcoder.com/practice/6ab1d9a29e88450685099d45c9e31e46?tpId=13&tqId=11189&tPage=2&rp=2&ru=/ta/coding-interviews&qru=/ta/coding-interviews/ ...

"在线预览" 方法 使用nodeType判断类型，在allChildNodes方法内建立递归函数将allCN封装在方法内。 ...

2-SAT。洛谷P3845 一开始以为——怎么有3个呢？后来发现因为每个地图都有一种车是不能用的，所以就等于每一个地图都有两个适应的车啦。 那么对于x类型的地图呢——只有8个，直接2^8暴力枚举每一种可能，就转化为了普通的问题。 令u,u'分别为一个地图适应的两种车，那么对于一个要求h1 - d1, ...

You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contai... ...

Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000.Example:Input: "babad" Output: "bab... ...

You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you nee ...

Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2.Note:The length of both num1 and num2 is < 1... ...

Given a Binary Search Tree (BST) with the root node root, return the minimum difference between the values of any two different nodes in the tree.Exam... ...

re正则匹配，如果没有匹配到就返回None，匹配结果加上.group()就会以字符串形式返回匹配结果 re的匹配语法 re的匹配语法 re.match() 从头开始匹配 只能从左边第一个开始匹配 re.search() 匹配包含 从字符串中的任意位置开始匹配 re.match()和re.search ...

Given a string, find the length of the longest substring without repeating characters.Examples:Given "abcabcbb", the answer is "abc", which the length... ...

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