Educative

Topic	Replies	Views	Activity
Dark mode for all content! Courses grokking-dynamic-programming-patterns-for-coding-interviews__design-gurus , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	2	244	December 11, 2020
Long polling, why not send to user B chat server directly? Courses designing-facebook-messenger__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	10	23	February 19, 2021
Missing Details Courses designing-facebook’s-newsfeed__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	103	May 22, 2020
Why is the time complexity O(n^3) shouldn't it be O(n^2)? Courses subarrays-with-product-less-than-a-target-medium__pattern-two-pointers__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	6	264	October 24, 2020
Does anyone else feel the input test cases could be better? Courses triplet-sum-close-to-target-medium__pattern-two-pointers__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	3	94	February 10, 2021
Doesn't sharding on LocationID mean that every node will be a hot node? Courses designing-yelp-or-nearby-friends__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	100	August 3, 2020
Missing Database Schema Courses designing-youtube-or-netflix__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	113	May 30, 2020
Detailed design diagram - missing an arrow? Courses designing-uber-backend__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	96	May 19, 2020
SOAP vs REST, what about other options? what about internal communication? Courses designing-facebook’s-newsfeed__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	97	March 22, 2020
Choosing Cassandra over others. Why? And some general doubts -Designing Instagram Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	7	426	September 26, 2020
Can't understand why we don't calculate the maxRepeating for each window Courses longest-substring-with-same-letters-after-replacement-hard__pattern-sliding-window__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	5	152	December 21, 2020
Load Balancer Vs API gateway Courses load-balancing__glossary-of-system-design-basics__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	338	June 15, 2020
Can you open up access to the tests on the "Try it yourself" Portions? I'd like to add several more tests to most of the questions Courses solution-review-problem-challenge-4__pattern-sliding-window__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	1	28	November 22, 2020
This is copied word by word from York university paper Courses designing-dropbox__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	3	200	February 23, 2021
Design a Payment System Courses contact-us__appendix__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	112	June 26, 2020
A mistake in the complexity calculations? Courses subsets-easy__pattern-subsets__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	2	105	October 24, 2020
For example {2,3,4,5}, should the answer be 2 Courses minimum-jumps-with-fee__pattern-3-fibonacci-numbers__grokking-dynamic-programming-patterns-for-coding-interviews , grokking-dynamic-programming-patterns-for-coding-interviews__design-gurus	1	71	May 2, 2020
Why not use geohash algorithm for this exercise? Courses designing-yelp-or-nearby-friends__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	164	January 13, 2021
Cant Wrap my head around the Logic Courses longest-subarray-with-ones-after-replacement-hard__pattern-sliding-window__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	2	163	June 18, 2020
Instagram Data Storage - Why not a Graph database? Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	3	103	October 28, 2020
No mention of the UserPhoto table Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	53	November 4, 2020
I'm worried about using the trie and some statements in the article Courses designing-typeahead-suggestion__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	61	February 13, 2021
Reset Course Progress Courses the-while-loop__repeat-statements__complete-javascript-course-build-a-real-world-app-from-scratch , complete-javascript-course-build-a-real-world-app-from-scratch__baptiste-pesquet	1	40	December 2, 2020
TweetID data size Courses designing-twitter-search__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	81	October 10, 2020
No-repeat substring answer key Courses grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	3	55	August 24, 2020
Reusing expired keys Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	52	October 29, 2020
Missing a lot of things Courses designing-dropbox__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	196	January 2, 2021
Location updates from 1million drivers Courses designing-uber-backend__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	146	March 25, 2020
How does choosing some other characters out of the base64 encoded string other than the first 6 letters resolve key duplication? Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	109	March 31, 2020
What is the need of such a complicated solution using Deque? Courses find-maximum-in-sliding-window__arrays__coderust-hacking-the-coding-interview , coderust-hacking-the-coding-interview__coderust	1	91	September 14, 2020
Is this original content or some credit is due? Courses designing-dropbox__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	93	May 17, 2020
A slightly simpler and a bit more optimized solution Courses solution-review-problem-challenge-1__pattern-two-heaps__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	3	89	December 20, 2020
Quiz Q1: Why would List and Search, both children of App not be siblings? Courses meet-another-react-component__fundamentals-of-react__the-road-to-react-the-one-with-hooks , the-road-to-react-the-one-with-hooks__robin-wieruch	2	53	July 31, 2020
How do we assume a modern web server can handle 50k concurrent connections? Courses designing-facebook-messenger__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	3	162	January 14, 2021
Confused about the inner loop Courses solution-review-big-o-of-nested-loop-with-multiplication__introduction-to-complexity-measures__data-structures-for-coding-interviews-in-c , data-structures-for-coding-interviews-in-c__coderust	3	83	March 19, 2020
TinyURL design::Hashing Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	52	December 16, 2020
Choice of Database? Courses designing-facebook’s-newsfeed__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	78	September 26, 2020
How KGS will handle collisions? Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	7	194	December 21, 2020
Learn Python from Scratch Courses executing-python-code__appendix__learn-python-3-from-scratch , learn-python-3-from-scratch__educative	2	104	April 16, 2020
No answers for 2nd and 3rd question Courses permutations__recursive__big-o-notation-for-coding-interviews-and-beyond , big-o-notation-for-coding-interviews-and-beyond__c-h-afzal	1	73	March 14, 2020
Memoization Approach Courses 01-knapsack__pattern-1-01-knapsack__grokking-dynamic-programming-patterns-for-coding-interviews , grokking-dynamic-programming-patterns-for-coding-interviews__design-gurus	1	72	July 13, 2020
How server handle messages from different users chatting with same user? Courses designing-facebook-messenger__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	3	134	September 21, 2020
Improved Solution Courses search-a-rotated-array__arrays__coderust-hacking-the-coding-interview , coderust-hacking-the-coding-interview__coderust	1	79	March 10, 2020
For timeline generation how the tweets retrieval query will be formed when the tweets are sharded by TweetID and Tweet creation time Courses designing-twitter__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	69	June 15, 2020
How the DB schema will look like for storing messages for each users? Courses designing-facebook-messenger__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	60	September 20, 2020
"Grokking the System Design Interview" certificate Courses other-courses__appendix__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	9	145	November 3, 2020
What is the logic of uniquely generating 6 letter key offline? Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	59	July 7, 2020
Inconsistent info: Data sharding is for metadata store or object store? Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	3	65	January 7, 2021
Regarding the Reshape Pivot Code Courses reshaping-the-data__describing-data__python-data-analysis-and-visualization , python-data-analysis-and-visualization__tyler-folkman	2	48	August 17, 2020
In the below example, only Flight class knows about Aircraft; hence it is a uni-directional association Courses class-diagram__object-oriented-design-and-uml__grokking-the-object-oriented-design-interview , grokking-the-object-oriented-design-interview__design-gurus	6	44	February 17, 2021