Title Difficulty Companies Videos
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
Find Longest Special Substring That Occurs Thrice 1 Medium
Special Array 2 Medium
Minimum Limit of Balls in a Bag Medium
Maximum Number of Integers to Choose From a Range I Medium
Move Pieces to Obtain a String Medium
Binary Tree Pruning Medium amazon buffer-box capital-one google hulu twitter
Brace Expansion Medium
Check if postordered array forms a binary search tree Medium
Construct Binary Search Tree BST from Preorder Traversal Medium amazon facebook microsoft oracle
Construct reverse sum hierarchy triangle from an array Medium
Convert a sorted doubly linked list DLL to balanced binary search tree Medium
Convert a sorted doubly linked list DLL to balanced binary search tree in-place Medium
Count Good Nodes in Binary Tree Medium microsoft
Delete in a Binary Search Tree Medium amazon apple bloomberg cisco facebook google linkedin microsoft oracle uber yahoo
Evaluate an expression tree and generate a parenthesised form Medium
Find Bottom Left Tree Value Medium bloomberg microsoft
Find Eventual Safe States Medium google
Find K Closest Elements Medium amazon apple bloomberg ebay facebook google microsoft snapchat uber
Find Leaves of Binary Tree Medium amazon atlassian ebay google linkedin pocket-gems
Find nodes in binary tree without siblings Medium
Find Size of Binary Tree Medium
Find the depth of a node in a binary tree Medium
Find the height of a node in a binary tree Medium
Flatten binary tree to linked list in order of inorder traversal Medium
Given preorder traversal of a BST, check if each non-leaf node has only one child Medium
Implement Hierarchical Locking System for Tree Structures Medium
Insert into a Binary Search Tree Medium amazon atlassian facebook google microsoft
Interval Scheduling Problem Medium
K closest Points to Origin Medium amazon apple asana ebay expedia facebook goldman-sachs google linkedin microsoft oracle paypal uber visa yahoo
Largest Divisible Subset Medium adobe amazon google
Left side view of a tree Medium