主要应用的是Hash Table 要对每种基础数据结构有深刻的理解。主要应对设计题： HashTable： 增、删、查都是O(1)，但是是无序的 vector: 增(尾部增O(1)、其他O(n))、删(尾部删O(1)、其…

  Write an efficient algorithm that searches for a value in an m x n matrix. This mat…

  Design your implementation of the linked list. You can choose to use the singly linked list or the…

  Find the minimum length word from a given dictionary words, which has all the letters from the str…

项目要求在terminal里面输入ifconfig 会出现当前ip address: inet addr. 但现在没有。

Medium 一开始直接clone数组居然TLE, 后来初始化的时候把shortest初始化为map.size()肯定有问题的，因为dict里面是允许duplicate的，所有你map.size()有可能是小于单词最大距…

Problem Reverse digits of an integer. Example：x = 123, return 321 Example：x = -123, return -321 Note： The inpu…

欢迎fork and star：Nowcoder-Repository-github 33. Search in Rotated Sorted Array 题目 Suppose an array sorted in as…

题目： Given a binary tree, return the zigzag level order traversal of its nodes’ values. (ie, fr…

题目： Given an array of integers, find two numbers such that they add up to a specific target number. The functi…

Given a string of numbers and operators, return all possible results from computing all the different possible…

A robot is located at the top-left corner of a m x n grid (marked ‘Start’ in t…