This is NOT a guide for studying for interviews. It's for *re-learning* the harder things as quickly as possible (like Neo learning Kung Fu).

Useful Links (system design)

SystemDesignInterview Youtube Channel
System Design Primer (donnemartin)
checkcheckzz's System Design Interview repository
Blind-curated 75 leetcodes list

Coding

Dijkstra
Quickselect
Rabin-Karp
Topological Sort
Trie
Union Find

SystemDesignQuestions

Distributed Message Queue
Instagram
Maps
Newsfeed
Twitter
Uber
WhatsApp
Youtube

SystemDesignConcepts

Consistent Hashing
ID Generation
Partitioning Concepts
Replication Lag
Replication Types
Sloppy Quorum And Hinted Handoff

Leetcode-Hard

Find K Th Smallest Pair Distance
Maximum Profit In Job Scheduling
Merge K Sorted Lists
Minimum Window Substring
Serialize And Deserialize Binary Tree
Trapping Rain Water
Word Ladder

Leetcode-Medium

01 Matrix
3sum
Accounts Merge
Add Two Numbers
Add Two Numbers Ii
Binary Tree Level Order Traversal
Binary Tree Right Side View
Clone Graph
Coin Change
Combination Sum
Construct Binary Tree From Preorder And Inorder Traversal
Container With Most Water
Course Schedule
Design Browser History
Evaluate Reverse Polish Notation
Find All Anagrams In A String
Implement Trie Prefix Tree
Insert Interval
Interleaving String
K Closest Points To Origin
Kth Smallest Element In A Bst
Letter Combinations Of A Phone Number
Longest Palindromic Substring
Longest Substring Without Repeating Characters
Lowest Common Ancestor Of A Binary Tree
Lru Cache
Maximum Subarray
Merge Intervals
Min Stack
Minesweeper
Number Of Islands
Partition Equal Subset Sum
Permutations
Product Of Array Except Self
Range Sum Query 2d Immutable
Remove All Adjacent Duplicates In String Ii
Rotting Oranges
Shuffle An Array
Sort Characters By Frequency
Sort Colors
Spiral Matrix
String To Integer Atoi
Subsets
Task Scheduler
Time Based Key Value Store
Validate Binary Search Tree
Word Search