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
|
|
|