Educative

Topic	Replies	Views	Activity
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	424	October 11, 2021
This course is a joke Courses design-amazon-online-shopping-system__object-oriented-design-case-studies__grokking-the-object-oriented-design-interview , grokking-the-object-oriented-design-interview__design-gurus	3	616	November 26, 2021
Sharding by PhotoIDs Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	4	331	October 18, 2021
Explanation could use some work 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	3	101	January 6, 2022
Shameful copy paste from Twitter Search Courses designing-yelp-or-nearby-friends__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	279	November 21, 2021
Why not using NN for online training? Courses ad-prediction__ad-prediction-system__grokking-the-machine-learning-interview , grokking-the-machine-learning-interview__machine-learning-labs	1	101	August 6, 2021
Why do we need to hash existing url? Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	132	April 4, 2021
Disappointing to see such abstract descriptions for a paid service Courses designing-typeahead-suggestion__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	100	June 11, 2021
https://www.educative.io/module/lesson/data-structures-in-java/3jo4DJ5R1pR#solution Courses solution-review-array-of-products-of-all-elements-except-itself__arrays__data-structures-for-coding-interviews-in-java , data-structures-for-coding-interviews-in-java__coderust	1	62	September 5, 2021
Why can't it be 31? Courses problem-set-1__basics__big-o-notation-for-coding-interviews-and-beyond , big-o-notation-for-coding-interviews-and-beyond__c-h-afzal	2	191	September 27, 2021
Coud we just do nums[i]- 1 != i instead of nums[i] != nums[nums[i] - 1]? Courses cyclic-sort-easy__pattern-cyclic-sort__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	2	82	December 8, 2021
Why not just return maxRepeatLetterCount + k 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	2	170	May 1, 2021
Concerns in design Courses designing-an-api-rate-limiter__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	3	272	March 5, 2021
Why Nosql is not used when we dont want Acid properties Courses designing-twitter-search__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	118	January 31, 2021
Serious concerns about choosing NOSQL Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	4	234	October 23, 2021
Attributes + Hyperlinking Courses attributes-hyperlinking__semantic-web-page-layout-with-html__learn-html-css-and-javascript-from-scratch , learn-html-css-and-javascript-from-scratch__medhir-bhargava	1	102	April 21, 2021
Proof for "We will prune the leaves until we are left with one or two nodes which will be our answer and the roots for MHTs." Courses solution-review-problem-challenge-2__pattern-topological-sort-graph__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	0	66	April 18, 2021
This post is lacking Courses designing-youtube-or-netflix__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	3	79	January 19, 2022
Why is time complexity O(N∗M∗Len)? 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	2	105	August 10, 2021
Combining embedding vectors of the last k ads Courses feature-engineering__ad-prediction-system__grokking-the-machine-learning-interview , grokking-the-machine-learning-interview__machine-learning-labs	0	38	July 6, 2021
Where is the api_dev_key stored and how it is matched with userid Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	157	June 1, 2021
Does REST API apply to web sockets as well? Courses grokking-the-system-design-interview__design-gurus , http-push-based-technologies__web-architecture__web-application-software-architecture-101 , web-application-and-software-architecture-101__shivang-sarawagi	1	95	April 11, 2021
Urgent issue with test cases Courses solution-review-array-of-products-of-all-elements-except-itself__arrays__data-structures-for-coding-interviews-in-java , data-structures-for-coding-interviews-in-java__coderust	0	31	January 24, 2022
Why not O(mlogm + k logm) time? Courses kth-smallest-number-in-m-sorted-lists-medium__pattern-k-way-merge__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	1	70	November 8, 2021
Should not the OR condition (head === null \|\| halfReversed === null) be AND contion (head === null && halfReversed === null) Courses solution-review-problem-challenge-1__pattern-fast-slow-pointers__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	1	117	June 2, 2021
Design Tiny URL: MongoDB or Cassandra/Riak? Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	211	May 25, 2021
Chapter Is Not Very Clear Courses grokking-the-system-design-interview__design-gurus , anti-entropy-through-merkle-trees__dynamo-how-to-design-a-key-value-store__grokking-the-advanced-system-design-interview , grokking-the-advanced-system-design-interview__design-gurus	1	53	October 11, 2021
Recommended additional test case Courses intervals-intersection-medium__pattern-merge-intervals__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	0	124	May 7, 2021
Is this how the real OOP code should be written? Courses design-a-library-management-system__object-oriented-design-case-studies__grokking-the-object-oriented-design-interview , grokking-the-object-oriented-design-interview__design-gurus	0	133	July 9, 2021
Transient Message Store is missing in the detailed design Courses designing-facebook-messenger__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	121	April 10, 2021
Write through should be more suitable for read-heavy DB Courses grokking-the-system-design-interview__design-gurus , caching-strategies__caching__web-application-software-architecture-101 , web-application-and-software-architecture-101__shivang-sarawagi	2	112	August 18, 2021
Configure a CA and Certificates - The Beginners Guide to Docker Courses configure-a-ca-and-certificates__the-docker-engine__the-beginners-guide-to-docker , the-beginners-guide-to-docker__nigel-poulton	1	42	January 14, 2022
Alternative solution with O(1) time complexity Courses kth-smallest-number-in-a-sorted-matrix-hard__pattern-k-way-merge__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	1	74	May 11, 2021
Data Compression Courses designing-pastebin__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	62	September 8, 2021
While it's hard to prove tight bound mathmatically Courses happy-number-medium__pattern-fast-slow-pointers__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	0	87	May 15, 2021
(Simpler?) Implementation with same amortized runtime and space complexity 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	0	88	March 28, 2021
Why not getFullURL API? Courses designing-a-url-shortening-service-like-tinyurl__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	77	January 31, 2021
Index Server Fault Tolerance Strategy Courses designing-twitter-search__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	87	February 21, 2021
Careful when actually interviewing as there's O(T) solution! Courses minimum-coin-change__pattern-2-unbounded-knapsack__grokking-dynamic-programming-patterns-for-coding-interviews , grokking-dynamic-programming-patterns-for-coding-interviews__design-gurus	0	83	May 16, 2021
Why will blockserver talk to metadata storage Courses designing-dropbox__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	2	156	March 26, 2021
Code is not in sync with class diagram Courses design-amazon-online-shopping-system__object-oriented-design-case-studies__grokking-the-object-oriented-design-interview , grokking-the-object-oriented-design-interview__design-gurus	0	71	February 23, 2021
Why is compliment added to the map, instead of reminder Courses data-structures-for-coding-interviews-in-java__coderust , subarray-sum-divisible-by-k-prefix-sum__two-pointers__the-algorithms-and-data-structures-interview-crash-course , the-algorithms-and-data-structures-interview-crash-course__the-eli5-guy	0	62	April 3, 2021
Sorting popularity in Index Courses designing-twitter-search__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	69	February 18, 2021
Can the solution be visualized better? Courses two-single-numbers-medium__pattern-bitwise-xor__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	1	92	May 19, 2021
Error: unknown flag: --generator Courses communicating-between-namespaces__namespaces__a-practical-guide-to-kubernetes , a-practical-guide-to-kubernetes__viktor-farcic	1	1532	August 6, 2021
UserPhoto and UserFollower inefficient to store using column family DB like Cassandra Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	159	July 30, 2021
Why don't use API Courses designing-instagram__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	0	51	October 15, 2021
Web socket over long polling Courses designing-dropbox__system-design-problems__grokking-the-system-design-interview , grokking-the-system-design-interview__design-gurus	1	148	September 10, 2021
Why extra for loop with BFS in graph Courses challenge-1-implement-breadth-first-search__introduction-to-graphs__data-structures-for-coding-interviews-in-python , data-structures-for-coding-interviews-in-python__coderust	1	76	August 6, 2021
No need to build the sorted order Courses tasks-scheduling-medium__pattern-topological-sort-graph__grokking-the-coding-interview-patterns-for-coding-questions , grokking-the-coding-interview-patterns-for-coding-questions__design-gurus	4	95	September 29, 2021