Medium | K5kC | Code & More

All Topics Algorithms Backend
Design Concurrency Database Database
Design Java Javascript Object Oriented
Design Programming
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Title	Difficulty	Companies	Videos
Make Lexicographically Smallest Array by Swapping Elements	Medium
Fix the variable capture in closure	Medium	google
Count Servers that Communicate	Medium	amazon google
Check if a graph is minimally-connected	Medium	facebook
Describe and give an example of Ad-hoc, Parametric and Subtype polymorphism	Medium	microsoft
Map of Highest Peak	Medium
Construct Binary Search Tree BST from Postorder Traversal	Medium	google
Grid Game	Medium
Sort a linked list in O(n log n) time and constant space	Medium	google
Implement a 2D iterator class	Medium	uber
First Completely Painted Row or Column	Medium
Neighboring Bitwise XOR	Medium
Bitwise XOR of All Pairings	Medium
Minimize XOR	Medium
Generate random numbers from list based on given probabilities	Medium	triplebyte
Find the Prefix Common Array of Two Arrays	Medium
Minimum Length of String After Operations	Medium
Check if a Parentheses String Can Be Valid	Medium
Construct K Palindrome Strings	Medium	uber
Find Missing 1000 Numbers in Large Range	Medium	two sigma
Explaining Web Cookies to Non-Technical Person	Medium	airtable
Explaining API vs SDK to Non-Technical Person	Medium	amazon
Decrypt XOR-Encoded Hexadecimal String	Medium	apple
Merge Two Sorted Iterators	Medium	two-sigma
Alternating Add-Subtract Curried Function	Medium
Validate Mastermind Game Guesses	Medium	facebook
Interleave Ranked Song Lists for Playlist	Medium	spotify
Word Subsets	Medium	amazon facebook google
Nearest larger number for index in an array	Medium	google
Implement a bit array	Medium	amazon
Minimum Number of Operations to Move All Balls to Each Box	Medium
Square root of a real number	Medium
Shifting Letters II	Medium
Break a string into lines of length k without breaking words	Medium	amazon
Maximum coins from top-left to bottom-right with right or down moves	Medium	zillow
Smallest set to cover all intervals	Medium	google microsoft
Number of Ways to Split Array	Medium
Generate a finite, but an arbitrarily large binary tree in O(1) time	Medium	jane-street
Count Vowel Strings in Ranges	Medium
Best Sightseeing Pair	Medium	wayfair
Find Largest Value in Each Tree Row	Medium	amazon apple facebook linkedin microsoft
Shortest substring containing all characters in a set	Medium	square
Minimum Number of Operations to Sort a Binary Tree by Level	Medium
Reverse Odd Levels of Binary Tree	Medium
Construct String With Repeat Limit	Medium
Maximum Average Pass Ratio	Medium
Continuous Subarrays	Medium
Find Score of an Array After Marking All Elements	Medium
Maximum Beauty of an Array After Applying Operation	Medium
Find Longest Special Substring That Occurs Thrice 2	Medium