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原创零基础做算法？清华计算机系学长带你斩获大厂算法校招SSP

每年秋招的时候，知乎都会有对于算法岗内卷的讨论，从18年是否值得进入，19年供大于求，20年一片红海诸神黄昏，21年灰飞烟灭到22年人间地狱。不改变的是算法岗很卷的事实，在变化的是薪资包越来越大。方向有多卷，包就有多大，这就是为什么算法岗一直红海的原因。因此，如何让自己脱颖而出，成为卷王？下面将从确定求职方向、算法岗秋招时间线、算法岗面试流程进行细致介绍（文末会有彩蛋）。

2022-03-29 22:15:15 2229

原创带你走遍2018年清北中科院计算机相关保研夏令营、预推免的全过程和必须要注意的坑（干货满满）

前言这是一篇笔者的保研经历回顾，主要是针对于计算机专业，不过很多地方也适用于其他专业。如有错误，欢迎交流指正:)笔者的保研准备是从大三下（大概是18年4月份）才开始的，之前一直是抱着出国的想法去准备各种东西。后来由于各种原因没有选择出国（其中一个原因也是为了圆儿时的清华梦XD）。首先列出笔者的基本情况：本科院校中山大学本科专业软件工程专业排名3/119竞...

2018-09-25 13:19:19 14194 9

原创 Beautiful Arrangement

[leetcode]Beautiful Arrangement链接：https://leetcode.com/problems/beautiful-arrangement/description/QuestionSuppose you have N integers from 1 to N. We define a beautiful arrangement as an array...

2018-08-27 11:09:48 305

原创 URL映射

[CCF]URL映射QuestionURL 映射是诸如 Django、Ruby on Rails 等网页框架 (web frameworks) 的一个重要组件。对于从浏览器发来的 HTTP 请求，URL 映射模块会解析请求中的 URL 地址，并将其分派给相应的处理代码。现在，请你来实现一个简单的 URL 映射功能。　　本题中 URL 映射功能的配置由若干条 URL 映射规则组成。当...

2018-08-21 19:10:52 290

原创 Unique Substrings in Wraparound String

[leetcode]Unique Substrings in Wraparound String链接：https://leetcode.com/problems/unique-substrings-in-wraparound-string/description/QuestionConsider the string s to be the infinite wraparound ...

2018-08-21 19:07:31 173

原创 Unique Binary Search Trees II

[leetcode]Unique Binary Search Trees II链接：https://leetcode.com/problems/unique-binary-search-trees-ii/description/QuestionGiven an integer n, generate all structurally unique BST’s (binary sea...

2018-08-21 18:59:55 143

原创 Ugly Number II

[leetcode]Ugly Number链接：https://leetcode.com/problems/ugly-number/description/QuestionWrite a program to find the n-th ugly number.Ugly numbers are positive numbers whose prime factors only ...

2018-08-14 22:12:14 189

原创 Triangle

[leetcode]Triangle链接：https://leetcode.com/problems/triangle/description/QuestionGiven a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on th...

2018-08-14 22:11:54 399

原创 Task Scheduler

[leetcode]Task Scheduler链接：https://leetcode.com/problems/task-scheduler/description/QuestionGiven a char array representing tasks CPU need to do. It contains capital letters A to Z where diffe...

2018-08-14 22:11:35 375

原创 Split Array into Fibonacci Sequence

[leetcode]Split Array into Fibonacci Sequence链接：https://leetcode.com/problems/split-array-into-fibonacci-sequence/description/QuestionGiven a string S of digits, such as S = "123456579", we ca...

2018-08-14 22:11:07 235

原创 Split Array into Consecutive Subsequences

[leetcode]Split Array into Consecutive Subsequences链接：https://leetcode.com/problems/split-array-into-consecutive-subsequences/QuestionYou are given an integer array sorted in ascending order (...

2018-08-14 22:10:45 182

原创 Soup Servings

[leetcode]Soup Servings链接：https://leetcode.com/problems/soup-servings/description/QuestionThere are two types of soup: type A and type B. Initially we have N ml of each type of soup. There are...

2018-08-14 22:10:25 198

原创 Score After Flipping Matrix

[leetcode]Score After Flipping Matrix链接：https://leetcode.com/problems/score-after-flipping-matrix/description/QuestionWe have a two dimensional matrix A where each value is 0 or 1.A move con...

2018-08-14 22:10:04 150

原创 Restore IP Addresses

[leetcode]Restore IP Addresses链接：https://leetcode.com/problems/restore-ip-addresses/description/QuestionGiven a string containing only digits, restore it by returning all possible valid IP add...

2018-08-14 22:09:32 117

原创 Reorganize String

[leetcode]Reorganize String链接：https://leetcode.com/problems/reorganize-string/description/QuestionGiven a string S, check if the letters can be rearranged so that two characters that are adjac...

2018-08-14 22:08:58 200

原创 Remove K Digits

[leetcode]Remove K Digits链接：https://leetcode.com/problems/remove-k-digits/description/QuestionGiven a non-negative integer num represented as a string, remove k digits from the number so that ...

2018-08-14 22:07:43 168

原创 Perfect Squares

[leetcode]Perfect Squares链接：https://leetcode.com/problems/ugly-number/description/QuestionGiven a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16,...

2018-08-12 21:57:01 167

原创 Partition to K Equal Sum Subsets

[leetcode]Partition to K Equal Sum Subsets链接：https://leetcode.com/problems/partition-to-k-equal-sum-subsets/description/QuestionGiven an array of integers nums and a positive integer...

2018-08-12 21:56:34 208

原创 Partition Equal Subset Sum.cpp

[leetcode]416-Partition Equal Subset Sum链接：https://leetcode.com/problems/partition-equal-subset-sum/description/QuestionGiven a non-empty array containing only positive integers, find if the a...

2018-08-12 21:56:13 144

原创 Out of Boundary Paths

[leetcode]Out of Boundary Paths链接：https://leetcode.com/problems/out-of-boundary-paths/description/QuestionThere is an m by n grid with a ball. Given the start coordinate&nb...

2018-08-12 21:55:58 306

原创 Ones and Zeroes

[leetcode]Ones and Zeroes链接：https://leetcode.com/problems/ones-and-zeroes/description/QuestionIn the computer world, use restricted resource you have to generate maximum benefit is what we alw...

2018-08-12 21:55:42 182

原创 My Calendar II

[leetcode]My Calendar II链接：https://leetcode.com/problems/my-calendar-ii/QuestionImplement a MyCalendarTwo class to store your events. A new event can be added if adding the event will not caus...

2018-08-12 21:55:24 194

原创 Monotone Increasing Digits

[leetcode]Monotone Increasing Digits链接：https://leetcode.com/problems/monotone-increasing-digits/description/QuestionGiven a non-negative integer N, find the largest number that is less than or...

2018-08-12 21:54:38 177

原创 Minimum Path Sum

[leetcode]Minimum Path Sum链接：https://leetcode.com/problems/minimum-path-sum/description/QuestionGiven a m x n grid filled with non-negative numbers, find a path from top left to bottom right w...

2018-08-12 21:54:12 116

原创 Minimum Absolute Difference in BST

[leetcode]Minimum Absolute Difference in BST链接：https://leetcode.com/problems/minimum-absolute-difference-in-bst/description/QuestionGiven a binary search tree with non-negative values, find th...

2018-08-12 21:53:49 176

原创 Largest Divisible Subset

[leetcode]Largest Divisible Subset链接：https://leetcode.com/problems/largest-divisible-subset/description/QuestionGiven a set of distinct positive integers, find the largest subset such that eve...

2018-08-12 21:53:12 124

原创 K-th Symbol in Grammar

[leetcode]K-th Symbol in Grammar链接：https://leetcode.com/problems/reorganize-string/description/QuestionOn the first row, we write a 0. Now in every subsequent row, we look at the previous row ...

2018-08-11 22:21:32 170

原创 Jump Game

[leetcode]Jump Game链接：https://leetcode.com/problems/jump-game/description/QuestionGiven an array of non-negative integers, you are initially positioned at the first index of the array.Each e...

2018-08-11 22:21:14 116

原创 Increasing Subsequences

[leetcode]Increasing Subsequences链接：https://leetcode.com/problems/increasing-subsequences/description/QuestionGiven an integer array, your task is to find all the different possible increasing...

2018-08-11 22:20:37 102

原创 Guess Number Higher or Lower

[leetcode]Guess Number Higher or Lower链接：https://leetcode.com/problems/guess-number-higher-or-lower/description/QuestionWe are playing the Guess Game. The game is as follows:I pick a number ...

2018-08-11 22:20:19 176

原创 Guess Number Higher or Lower II

[leetcode]Guess Number Higher or Lower II链接：https://leetcode.com/problems/guess-number-higher-or-lower-ii/description/QuestionWe are playing the Guess Game. The game is as follows:I pick a n...

2018-08-11 22:19:57 197

原创 Dota2 Senate

[leetcode]Dota2 Senate链接：https://leetcode.com/problems/dota2-senate/description/QuestionIn the world of Dota2, there are two parties: the Radiant and the Dire.The Dota2 senate consists of se...

2018-08-11 22:19:33 513

原创 Domino and Tromino Tiling

[leetcode]Domino and Tromino Tiling链接：https://leetcode.com/problems/domino-and-tromino-tiling/description/QuestionWe have two types of tiles: a 2x1 domino shape, and an “L” tromino shape. Thes...

2018-08-11 22:19:10 204

原创 Contains Duplicate III

[leetcode]Contains Duplicate III链接：https://leetcode.com/problems/contains-duplicate-iii/description/QuestionGiven an array of integers, find out whether there are two distinct indices i&n...

2018-08-11 22:18:53 96

原创 Advantage Shuffle

[leetcode]Advantage Shuffle链接：https://leetcode.com/problems/advantage-shuffle/description/QuestionGiven two arrays A and B of equal size, the advantage of A with respect to B is the number of ...

2018-08-11 22:18:02 287

原创 Walking Robot Simulation

[leetcode]Walking Robot Simulation链接：https://leetcode.com/problems/walking-robot-simulation/description/QuestionA robot on an infinite grid starts at point (0, 0) and faces north. The robot c...

2018-08-08 22:35:03 244

原创 Score After Flipping Matrix

[leetcode]Score After Flipping Matrix链接：https://leetcode.com/problems/score-after-flipping-matrix/description/QuestionWe have a two dimensional matrix A where each value is 0 or 1.A move con...

2018-08-08 22:34:41 144

原创 Queue Reconstruction by Height

[leetcode]Queue Reconstruction by Height链接：https://leetcode.com/problems/queue-reconstruction-by-height/description/QuestionSuppose you have a random list of people standing in a queue. Each p...

2018-08-08 22:34:17 143

原创 Partition Labels

[leetcode]Partition Labels链接：https://leetcode.com/problems/partition-labels/description/QuestionA string S of lowercase letters is given. We want to partition this string into as many parts as...

2018-08-08 22:33:55 153

原创 Non-overlapping Intervals

[leetcode]Non-overlapping Intervals链接：https://leetcode.com/problems/non-overlapping-intervals/description/QuestionGiven a collection of intervals, find the minimum number of intervals you need...

2018-08-08 22:33:33 137

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