YoungForest's blog

First Round time: 2020-03-11 10:28:43 Last week HR contacted me to ask about my preferred work city, but did not schedule a specific interview time. Last night at 8:30, I suddenly received a call from Shenzhen, Guangdong, asking whether it was convenient, and the interview started directly. Surpri

First Interview time: 2020-03-09 16:45:44 Resume Experience Introduced each project experience. The interviewer asked questions at any time based on the projects, such as knowledge around RESTful API, SOAP, and so on. Computer Science Fundamentals Implementation of HashMap * How is a hash value

RankNameScoreFinish TimeQ1 (3)Q2 (4)Q3 (5)Q4 (6)539 / 6242YoungForest181:09:530:05:430:13:090:24:011:04:53 11374. Generate a String With Characters That Have Odd Counts If n is even, use one a and fill the rest with b; if n is odd, use all a. Time complexity: O(n), space complexity: O(n). When wri

RankNameScoreFinish TimeQ1 (4)Q2 (4)Q3 (5)Q4 (6)175 / 4729YoungForest191:05:070:21:380:39:430:50:401:05:07Overall, the difficulty was not high, especially the last two problems, which were not as hard as they should have been. 1370. Increasing Decreasing String Directly simulate the process of cons

The interview was done by DingTalk phone/video call, and the hand-written coding part was completed through Alibaba’s online platform. There were two algorithm questions: 1. Implement the data structure for a doubly linked list. 2. twoSum: find the indices of two numbers in an array wh

* HashMap * Database * indexes, optimization, transactions * clustered index and non-clustered index * Concurrent Programming * Network Programming, RPC * Algorithm problem: * Edit Distance The algorithm question was to compute Edit Distance (Levenshtein Distance). I had hap

RankNameScoreFinish TimeQ1 (4)Q2 (5)Q3 (5)Q4 (6)333 / 6106YoungForest201:04:220:25:000:33:400:43:210:59:22 1A contest about speed and being bug-free. 1360. Number of Days Between Two Dates Calculate the difference between two dates. I originally wanted to compute it manually, but it was too complic

RankNameScoreFinish TimeQ1 (3)Q2 (4)Q3 (5)Q4 (6)233 / 4347YoungForest180:41:390:03:320:13:58 10:24:130:31:39 1The problems in this contest were relatively simple. It was another contest of speed and bug-free coding. After missing contests for half a year, I cannot even get into the top 200 in a smal

Reposted from my blog 2020 is destined to be an unusual year for me, mainly because I am facing the two gates of graduation and job hunting. This is the most important challenge and task I have faced in the past two years. I have prepared for it for a long time, hoping that all the accumulation wou

RankNameScoreFinish TimeQ1 (3)Q2 (5)Q3 (5)Q4 (6)306 / 8105YoungForest191:36:070:02:470:23:090:54:53 11:26:07 1In this contest I finally got AC at the last moment, which was extremely thrilling. Since joining the students in the China region, it has been hard for my weekly contest rank to enter the t