Leetcode Top Interview Questions

You'll get points off for that. Level up your coding skills and quickly land a job. We have 100+ questions on Python Programming basics which will help you with different expertise levels to reap the maximum benefit from our blog. The MSDN docs say the following: We recommend that you derive from the EqualityComparer class instead of implementing the IEqualityComparer interface, because the EqualityComparer class tests for equality using the IEquatable. Interview Questions. com How To Hire The Right Programmer Even If You Know Absolutely NOTHING About. Several easier implementations or easier understanding analysis have been added. Consider our top 100 Data Science Interview Questions and Answers as a starting point for your data scientist interview preparation. ConcurrentHashMap, CopyOnWriteArrayList, BlockingQueue etc, which has made Interview questions on Java Collection even trickier. After some chit chat, we got to Coderpad to do the problem. The process took 2 weeks. The most difficult one was at the hard level on LeetCode. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit. However, very few people did it correctly. But this time, my strategy only focuses on leetcoding top questions from these 3 companies. Start from questions that are labeled "Easy", then to "Medium", then try "Hard", this way, you could have a smooth ramp up and won't feel super discouraged or frustrated. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. CREDIT: Getty Images. One starts at the root (selecting some arbitrary node as the root in the case of a graph) and explores as far as possible along each branch before backtracking. pdf), Text File (. Comprehensive, community-driven list of essential PHP interview questions. 0% Hard 13 Roman to Integer 39. com/problemset/top-interview-questions/ #. Interview Questions. However, I'm confused as to the order of how I should be completing these problems. Just like any other skills, coding interview is one area where you can greatly improve with deliberate practice. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. A subsequence of a string is a new string which is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. If you plan to power the backend of your website using Microsoft SQL, Informix, IBM DB2, MySQL, Oracle, MS Access, Sybase, or another relational database management system, a SQL developer can help bring your web project to life. ” Glassdoor placed it in the first position on the 25 Best Jobs in America list. Problems [1] 156 Binary Tree Upside Down. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. LeetCode Top 10 questions for Interview. If you would like more solutions as they come out, please sign up for our email list below. You can pick Leetcode/CTCI/Interview Bit/EPI/Firecode/etc. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit. 张慕晖 关注 赞赏支持. If you are familiar with NFL Combine - the current interview acts somewhat like the measurable (40 yard dash, bench press, vertical time, etc). They do not necessarily have experience interviewing or working with companies, careers, or schools, in which they may write for on MockQuestions. The process took 2 weeks. last row and first column is optional because they are handled only if there are more than one row or more than two columns. This article will give you the idea about important Advanced SQL Interview Questions with its answers. Here is the list of top-rated Data Science interview questions and answers. The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2. I interviewed at Tribune Publishing. Hey yall, I recently got a LeetCode premium membership. 1,292 Microsoft Software Development Engineering interview questions and 1,078 interview reviews. This is the best place to expand your knowledge and get prepared for your next interview. String programming questions, String programs answers in C. io in 45 minutes. Find that single one. , Attributes: 1. The website provides a huge number of curated interview questions with online judge, so you can submit solutions and check if they're correct. Leetcode刷题总结(5):Top Interview Questions. txt) or read online for free. To be successful in a technical interview, we believe it is mainly repeating these three important steps: Review, Code, Discuss. Consider getting up in front of a whiteboard and having a friend ask you some questions, as you may be asked to do some live coding during the interview. You need write codes and pass the test cases they provided. However, very few people did it correctly. Shop leetcode. This is one of Amazon's most commonly asked interview questions according to LeetCode (2019)! Subsets coding solution. About LeetCode. Try to figure out the answer to the questions yourself before reading the answers. What is LeetCode? LeetCode is a massive collection (1,050 and counting) of challenging coding problems. 6% Medium 138 Copy List with Random Pointer 26. 9% Medium 23 Merge k Sorted Lists 23. Equals method. Demonstrate all the questions on LeetCode in the form of animation. Leetcode: Edit Distance October 10, 2019 by Arshdeep Singh Leave a Comment Given two words word1 and word2 , find the edit distance between word1 and word2 i. Algorithm amazon interview questions Cracking the coding interview Data structure GeeksofGeeks Guide to crack interview interview Interviewbit Largest Histogram LeetCode Labels: Algorithm amazon interview questions Cracking the coding interview Data structure GeeksofGeeks Guide to crack interview interview Interviewbit Largest Histogram LeetCode. I should push myself to solve 100 to 200 algorithm on Leetcode. Facebook is showing information to help you better understand the purpose of a Page. Solving a lot of problems on LeetCode is likely enough for a lot of job interviews. DeepLearning-500-questions. You can clear these interviews only if you have exclusively prepared for these companies and type of questions. I did have some experience on Hackerrank contest leader board. com - add your remark to single question - View Problems by keywords or ID - collect problems to read later - code highlight. Handout 2. they both print their argument, so they are overloaded. Interview Questions. LeetCode Online Judge Questions/Answer List. Facebook Coding Interview (2019) - Best Time to Buy and Sell Stock (LeetCode) by Kevin Naughton Jr. LeetCode for Hardware, Electrical, Design Verification, ASIC, FPGA Engineers. Got tired of the grind so I did CTCI and finished that in about 12-ish days. com/problems/regular-expression-matching/ Dynamic Programming set I: House Robber I. Best Time to Buy and Sell Stock II - 123. I definitely have experience to work as a software programmer. This book contains technical interview questions that an interviewer asks for Data Engineer position. They also have a repository of articles, which are solutions to their questions with reasoning behind each step, so software engineers that are not as strong can also benefit from Leetcode. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next PHP interview ahead of time. The first few questions are more Python-specific, and then we have a bunch of general data structures and algorithms questions in Python. System design interview questions can be quite open-ended, which is why many people are afraid of this kind of interview. You can choose your most comfortable programming language to view and write solution code to technique interview questions. Top It Interview Questions. Any behavioral/culture/softskill questions will be bullshitted by sociopaths and liars. Bad part about amazon is they don’t give us feedback about what went wrong during interview. This question. Hey yall, I recently got a LeetCode premium membership. Level up your coding skills and quickly land a job. The follow-up is your chance to recover. 5% Easy 10 Regular Expression Matching 22. Start from questions that are labeled “Easy”, then to “Medium”, then try “Hard”, this way, you could have a smooth ramp up and won’t feel super discouraged or frustrated. " and "questions on linkedlist and graph. Onsite interview, from 9 am to 3:30 pm, five interviews. The phone screen was with an international person. Best match Most stars Fewest stars Most forks Fewest forks Recently Python and C# to solve LeetCode interview questions. 深度学习500问,以问答形式对常用的概率知识、线性代数、机器学习、深度学习、计算机视觉等热点问题进行阐述,以帮助自己及有需要的读者。. Now in the 5th edition, Cracking the Coding Interview gives you the interview preparation you need to get the top software developer jobs. In fact, many companies (including the Big 5 tech giants) use interview questions they find on LeetCode!. Note: DFS can be used to:. Link: Top Google Questions, Link: Top 100 Liked Questions, Link: Top Interview Questions Leetcode summary GitHub: kdn251/interviews , Github: Algorithms-and-Coding-Interviews. You have a car with an unlimited gas tank and it costs cost[i] of gas to travel from station i to its next station (i+1). 1) What is an operating system? The operating system is a software program that facilitates computer hardware to communicate and operate with the computer software. Some of these, I tried are : (1) Random Order - OR - Sort them based on difficulty level and (2) Solve in Linear increasing/ decreasing Order of difficulty (3) Perform "Binary Search" to find y. LeetCode: Top Interview Questions - Linked List 这里是Linked List类型题的锦集 Posted by YuXiao on January 11, 2018. And as we mentioned previously, the mock interview questions and other tips specific to companies like Facebook or Microsoft are only available to Premium users. Premium Leetcode access grants me access to company-specific problems so that I can study for a specific interview. OOPs is a programming paradigm formulated around Objects which can hold attributes defining it behavior. We at tutorialspoint wish you best luck to have a good interviewer and all the very best for your future endeavor. It has just about every problem you can imagine. What is LeetCode? LeetCode is a massive collection (1,050 and counting) of challenging coding problems. Top 10 Interview Questions on Depth First Search (DFS) Depth-first search (DFS) is an algorithm for traversing or searching tree or graph data structures. Shop leetcode. Second it really doesn't matter much if you could not answer few questions but it matters that whatever you answered, you must have answered with confidence. The primary key is the column or set of columns used to uniquely identify the items in a table. Some of these, I tried are : (1) Random Order - OR - Sort them based on difficulty level and (2) Solve in Linear increasing/ decreasing Order of difficulty (3) Perform "Binary Search" to find y. Programming Interview Questions + Help Getting Job Offers | Interview Cake. all my technical interview questions was a very easy ( Unix administration ) but even thought i did not get an offer. CareerCup's interview videos give you a real-life look at technical interviews. There are multiple ways to get started: 1. I had 15 days in my hands. Second Highest Salary using SQL Server Top Keyword Just like MySQL has LIMIT keyword, which is immensely helpful in sorting and paging, Microsoft SQL Server also has a special keyword called TOP, which as name suggest prints top records from result set. LeetCode – Top K Frequent Elements (Java) Given a non-empty array of integers, return the k most frequent elements. Recent 6 month questions should be most relevant. About LeetCode. "Most of us are familiar with having the prospect of having to grind tons of Leetcode problems before the interview, but I really wanted a sense of direction, an outline of sorts to prepare efficiently; I wanted to pick questions that covered all the important concepts one can be tested on. Time is O(n). LeetCode is a social platform for preparing technical interviews for companies in the IT industry. We are presenting a collection of data structure and algorithm questions and answers for technical interviews for software companies. Apart from the degree/diploma and the training, it is important to prepare the right resume for a data science job, and to be well versed with the data science interview questions and answers. In an interview, sometimes you get an intentionally vague problem and asking questions to clarify it is part of the interview. Note:Your algorithm should have a linear runtime complexity. Top 50 Data Warehouse Interview Questions & Answers Top 18 Algorithm Interview Questions & Answers Top 100 C Programming Interview Questions & Answers Top 50 Artificial Intelligence Interview Questions & Answers. Whenever interview questions come up on HN there are always many comments refuting them. The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2. Building on this, in the next chapter we will give you primers for. Interview candidates say the interview experience difficulty for LeetCode is average. Coding Interviews Path Sum (LeetCode) question and explanation. It is my 30 minutes study of Leetcode contest leader board top 150. Questions have similar difficulty level as Google/Facebook interview. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next PHP interview ahead of time. If you're slow or you stumble, then you won't get a call back. B) SQL Job Interview Questions. If you would like more solutions as they come out, please sign up for our email list below. The phone screen was with an international person. In any 15-minute interval, there is a 20% probability that you will see at least one shooting star. Leetcode刷题总结(5):Top Interview Questions. link New Year Gift - Curated List of Top 75 LeetCode Questions to Save Your Time New Year Gift to every fellow time-constrained engineer out there looking for a job, here's a list of the best LeetCode questions that teach you core concepts and techniques for each category/type of problems!. Amazon is the world's largest online retailer, selling everything from books to shampoo, and lots of people want to work there. Some are 1:1 and some are 2:1. Collection of awesome interview references. The recruiter reached out to me and scheduled an initial phone screen. Top 9 questions about Java Maps Stories Diagram Eclipse Platform Exceptions Framework Concepts Frameworks & Libraries Generics Google API Guava GUI I/O Interview. Top 10 Algorithms for Coding Interview. Best time to buy and sell stock The problem. Really, all you need to do is play along and evaluate the people who are interviewing you. You may complete as many transactions as you like (i. For the phone interview, make sure to practice on coderpad. The website provides a huge number of curated interview questions with online judge, so you can submit solutions and check if they're correct. com recently. Here is the list of top-rated Data Science interview questions and answers. Introduction. These are the questions for which a good design engineer is expected to know the answers to. I applied through a recruiter. Whenever interview questions come up on HN there are always many comments refuting them. Cracking the hardware engineering interview preparation process and questions. Here, we will use the integers 0, 1, and 2 to represent the color red, white, and blue respectively. In real world, best algorithms evolve. LeetCode is the best platform to help you improve your skills, expand your knowledge and prepare for a technical interview. Are you preparing for an interview for a quantitative role and have no idea of what to expect? Look no further! In this chapter, we will show the types of questions you should expect to face in a quantitative job interview. just curious if it was an accurate representation, in general,. leetcode 283. " and "questions on linkedlist and graph. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. If you have 6 months to prepare for the interview I would definitely suggest the following things assuming that you have a formal CS degree and/or you have software development experience in some company: Step 1 (Books/Courses for good understandi. You have a function rand5() that generates a random integer from 1 to 5. Every project on GitHub comes with a version-controlled wiki to give your documentation the high level of care it deserves. The first few questions are more Python-specific, and then we have a bunch of general data structures and algorithms questions in Python. mock interview to questions in. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next PHP interview ahead of time. String programming questions, String programs answers in C. Level up your coding skills and quickly land a job. And yes, they were tougher than I expected. CareerCup's interview videos give you a real-life look at technical interviews. In fact, many companies (including the Big 5 tech giants) use interview questions they find on LeetCode!. Hope the embarrassing of Amazon Fire Phone won't have too much negative effect on Amazon this year's hiring. Bad part about amazon is they don’t give us feedback about what went wrong during interview. " and "Leetcode medium - stack and hash map based". top() -- Get the top element. I had 15 days in hands before the phone interview. Explore is a well-organized tool that helps you take full advantage of them by providing structure that guides you through the next steps of your programming career. Onsite interview, from 9 am to 3:30 pm, five interviews. Suppose we have 2 tables called Orders and. OOPs stands for Object Oriented Programming. These are best suited as senior java developer interview questions, but can be modified for any member of a java development team. Nov 20, 2018 0 8. I definitely have experience to work as a software programmer. Amazon is the world's largest online retailer, selling everything from books to shampoo, and lots of people want to work there. Interval questions can be tricky to those who have not tried them before because of the sheer number of cases to consider when they. It has just about every problem you can imagine. You can pick Leetcode/CTCI/Interview Bit/EPI/Firecode/etc. I revisited all the questions again and also have modified/updated analysis and code for many of them. Interview Questions. 2 Amazon is the best choice for me because of its AWS and EC2. Given an array of integers, every element appears three times except for one. I bet some of you are interviewing for program managers, too. Cheers :-). pop() -- Removes the element on top of the stack. We at tutorialspoint wish you best luck to have a good interviewer and all the very best for your future endeavor. Maybe not applicable to a timed interview, but inline documentation (///) on public members is always nice, and would help to explain the otherwise vague IsValid method name. 6% Medium 138 Copy List with Random Pointer 26. Among the Big Five, Amazon is said to place the least emphasis on LeetCode. If you would like more solutions as they come out, please sign up for our email list below. We looked through Glassdoor's massive index of user-submitted interview questions for prospective employees to find the most thought-provoking ones asked at Amazon. 1% Hard 139 Word Break 25. Interview Questions. He didn't give any test cases to start. This article gives you idea about the Advanced SQL Interview Questions with answers. Java 5 has added several new Concurrent Collection classes e. com, is that SQL server has 2 associated data files, as follows: MDF (Master Database File): actual data file storage, and LDF (Log Data File): which stores the transaction log. LeetCode Top 100 Liked Questions 15. Questions are collected. Maybe not applicable to a timed interview, but inline documentation (///) on public members is always nice, and would help to explain the otherwise vague IsValid method name. 张慕晖 关注 赞赏支持. A program manager is a strategic job. Hacking a Google Interview Mastering Programming Interview Questions. Commonly Asked OOP Interview Questions | Set 1 What is Object Oriented Programming? O bject O riented P rogramming (OOP) is a programming paradigm where the complete software operates as a bunch of objects talking to each other. " Read More "If you are wondering how to prepare for programming interviews, InterviewBit is the place to be. CareerCup's interview videos give you a real-life look at technical interviews. The questions were all exquisite, and the gaming aspect kept me engaged longer than I would have otherwise. Second it really doesn't matter much if you could not answer few questions but it matters that whatever you answered, you must have answered with confidence. Java Solution 1 - Using HashMap and Heap. TopITInterviewQuestions. The Word Ladder II Problem - Leetcode #126. Since BFS, DFS, and visualizing problems as graphs come up so commonly during interviews (and not necessarily during your everyday coding) I think this is one of the most valuable problems you could do during interview prep. I applied online. Every project on GitHub comes with a version-controlled wiki to give your documentation the high level of care it deserves. Top 25 Data Engineer Interview Questions. Here is a list of the 125 most common job interview questions with example answers below:. These problems were more or less coded by hand on paper and refined on my laptop to pass all the Leetcode test cases, but since I knew that they weren’t looking for. top() -- Get the top element. My Other Interview question articles on codeproject. I bet some of you are interviewing for program managers, too. Hope the embarrassing of Amazon Fire Phone won't have too much negative effect on Amazon this year's hiring. According to IBM, demand for this role will soar 28% by 2020. The most difficult one was at the hard level on LeetCode. Interview candidates say the interview experience difficulty for LeetCode is average. mock interview to questions in. In fact, many companies (including the Big 5 tech giants) use interview questions they find on LeetCode!. Preparing for your Software Engineering Interview at Facebook Engineering If you're interviewing at Facebook or you're just curious about the process, we want to be transparent about what to expect so you feel well informed and have a positive interview experience. You can clear these interviews only if you have exclusively prepared for these companies and type of questions. How to practice problems on Leetcode, Hackerrank, "Cracking the Coding Interview" or GeeksforGeeks I know people that have solved over 300 coding challenges and still couldn't ace interviews. Amazon is the world's largest online retailer, selling everything from books to shampoo, and lots of people want to work there. The follow-up is your chance to recover. Character check Rule: 1. Any technical questions will be biased toward competitive coders and leetcode cramers, and they aren't relevant for position X anyway. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Essentially, leetcode is a site with a variety of tools focused on programming interview questions. Coding Interviews Path Sum (LeetCode) question and explanation. One of the main parts of the site is dedicated to a list of problems, each tagged with a different computer science term that it is supposed to be based on. Including whiteboard coding, brain teasers, debugging of printed codes. They also have a repository of articles, which are solutions to their questions with reasoning behind each step, so software engineers that are not as strong can also benefit from Leetcode. According to research CCNA has a salary ranges from $23,000 to $165,000. Here is a list of the 125 most common job interview questions with example answers below:. It started with a phone screening with all the basic questions about my background, why I was searching for a job, what I was looking for, and what they were looking for. Leetcode Pattern 1 | DFS + BFS == 25% of the problems — part 2. Advanced SQL Interview Questions and Answers Here are some complex SQL interview problems that are for people who are looking for more advanced and challenging questions, along with the answers and complete explanations. If you plan to power the backend of your website using Microsoft SQL, Informix, IBM DB2, MySQL, Oracle, MS Access, Sybase, or another relational database management system, a SQL developer can help bring your web project to life. scutan90/DeepLearning-500-questions. I resolved all the database questions on Leetcode. Dynamic Programming – 7 Steps to Solve any DP Interview Problem #Notes. But the recruiter is a very nice person and helped me very well throughout the process. 3% Hard 24 Swap Nodes in Pairs 35. Top 50 Data Warehouse Interview Questions & Answers Top 18 Algorithm Interview Questions & Answers Top 100 C Programming Interview Questions & Answers Top 50 Artificial Intelligence Interview Questions & Answers. A subsequence of a string is a new string which is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. What is LeetCode? LeetCode is a massive collection (1,050 and counting) of challenging coding problems. Then 4~7 Medium questions for a few days. Straightforward and professional. PROBABILITY INTERVIEW QUESTIONS 32. Are you preparing for an interview for a quantitative role and have no idea of what to expect? Look no further! In this chapter, we will show the types of questions you should expect to face in a quantitative job interview. Amazon On-site in Seattle Every round has behavioral questions followed by tech questions. CareerCup's interview videos give you a real-life look at technical interviews. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next PHP interview ahead of time. The Word Ladder II Problem - Leetcode #126. Aside from industry-specific questions, these example questions are indicative of what you might encounter: A. I provided the answers as well as explanations in this blog, as a way to consolidate the SQL knowledge. Data Structures Interview. io in 45 minutes. Second Highest Salary using SQL Server Top Keyword Just like MySQL has LIMIT keyword, which is immensely helpful in sorting and paging, Microsoft SQL Server also has a special keyword called TOP, which as name suggest prints top records from result set. This question. Note: DFS can be used to:. However, very few people did it correctly. How to Crack The Coding Interview With Practicing Only 30 Questions December 22, 2015 March 29, 2016 Jake Mock Interview Thoughts As we always suggested in our previous posts, it's extremely helpful to practice with coding questions when preparing an interview. I started by solving LeetCode Easy questions. Dynamic Programming – 7 Steps to Solve any DP Interview Problem #Notes. Glassdoor has 1,742 interview reports and interview questions from people who interviewed for Software Development Engineer jobs at Amazon. In fact, many companies (including the Big 5 tech giants) use interview questions they find on LeetCode!. A LeetCode Grinding Guide Seeing how users in this sub and interviewers oppose to grinding LeetCode, I have decided to write a guide to help those who need to grind LeetCode. Most of us are aware of how we'll come off when we make a statement, and there's always some incentive to come off in a better light. Amazon Interview Online Assessment 11. If you have 6 months to prepare for the interview I would definitely suggest the following things assuming that you have a formal CS degree and/or you have software development experience in some company: Step 1 (Books/Courses for good understandi. I know the list is not complete but wanted to at least start with something and then keep adding as time goes. What is LeetCode? LeetCode is a massive collection (1,050 and counting) of challenging coding problems. 3Sum (Java版; Medium) The top 90 most popular SQL interview questions SQL面试最常见的90个问题及答案。. LeetCode – Gas Station (Java) There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. Interview candidates at Facebook rate the interview process an overall positive experience. California, U. io in 45 minutes. Interview Cake helps you prep for interviews to land offers at companies like Google and Facebook. Fizzbuzz doens't have any unknown conditions. The book is over 500 pages and includes 150 programming interview questions and answers, as well as other advice. These seem to be in hiring frenzy right now. Path Sum Java LeetCode coding solution. Object Oriented Design Interview Questions. But this time, my strategy only focuses on leetcoding top questions from these 3 companies. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 1% Hard 139 Word Break 25. [LeetCode] Trapping Rain Water Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. I know the list is not complete but wanted to at least start with something and then keep adding as time goes. I had 15 days in my hands. Are you preparing for an interview for a quantitative role and have no idea of what to expect? Look no further! In this chapter, we will show the types of questions you should expect to face in a quantitative job interview. They took Four Phone Interview before they ask me to fly to Seattle for Personal interview. Mastering the questions in each level on Leetcode is a good way to prepare for technical interviews and keep your skills sharp. Previous Top Interview Questions and. In any 15-minute interval, there is a 20% probability that you will see at least one shooting star. Perhaps you feel that you didn't make the best impression in the interview. Best Time to Buy and Sell Stock II - 123. Cracking tech interviews became cake walk after solving questions on InterviewBit. No questions were asked that remotely related to my experience or the position being interviewed for. Then 4~7 Medium questions for a few days. 2% Medium 141 Linked List Cycle 37. Interviewers are expecting you to solve these types of questions in 30 minutes with best possible algorithm. You can choose your most comfortable programming language to view and write solution code to technique interview questions. It is my 30 minutes study of Leetcode contest leader board top 150. The latest Tweets from LeetCode (@LeetCode). Comprehensive, community-driven list of essential PHP interview questions. I was emailed by an engineer working at leetcode, asking to solve few data structure and algo related questions as the first interview step. There are multiple ways to pick problems on LeetCode. LeetCode Top 100 Liked Questions 15. 50% of the interview applicants applied online. It should come as no surprise that in the new era of Big Data and machine. Usually coding questions are very similar to questions on leetcode and interviewbit.