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Prune Unary nodes to form Full Binary Tree
Medium
yahoo
Egyptian Fraction
Easy
palantir
External Sorting of integers
Medium
amazon
Three-Word Additive Cryptarithmetic Solver
Medium
google
Check if words chain to form a circle
Medium
dropbox
Infinite Prime Generator
Medium
Maximum of Two Numbers Without Conditionals
Hard
nvidia
Maximum Weight Spanning Tree
Hard
microsoft
Minimum and Maximum in an array with Optimal Comparisons
Medium
facebook
Point in Polygon
Medium
nvidia
Symmetric N-ary Tree Detection
Easy
amazon
Blackjack Optimal Strategy with Known Card Sequence
Hard
MIT
Custom Sort String
Medium
amazon
facebook
google
uber
Find All Conflicting Appointments
Easy
Maximum flow and bipartite matching
Hard
Remove a vertex and all connected edges from a graph
Easy
Minimum Insertion OR Deletion Steps to Make a String Palindrome
Medium
Minimum Deletion Steps to Make a String Palindrome
Medium
Closest Equal Element Queries
Medium
Check If Digits Are Equal in String After Operations I
Easy
Check If Digits Are Equal in String After Operations II
Hard
Choose K Elements With Maximum Sum
Medium
Concatenated Divisibility
Hard
Count Beautiful Numbers
Hard
Count Beautiful Splits in an Array
Medium
Count Cells in Overlapping Horizontal and Vertical Substrings
Medium
Count Connected Components in LCM Graph
Hard
Count Covered Buildings
Medium
Count Mentions Per User
Medium
Count Non-Decreasing Subarrays After K Operations
Hard
Count Numbers with Non-Decreasing Digits
Hard
Count Partitions with Even Sum Difference
Easy
Count Paths With the Given XOR Value
Medium
Count Special Subsequences
Medium
Count Substrings Divisible By Last Digit
Hard
Design Spreadsheet
Medium
Design Task Manager
Medium
Digit Operations to Make Two Integers Equal
Medium
DNA Pattern Recognition
Medium
Eat Pizzas!
Medium
Equal Sum Grid Partition I
Medium
Equal Sum Grid Partition II
Hard
Fill a Special Grid
Medium
Find Closest Person
Easy
Find Followers Count
Easy
Find Invalid IP Addresses
Hard
Find Minimum Cost to Remove Array Elements
Medium
Find Mirror Score of a String
Medium
Find Most Frequent Vowel and Consonant
Easy
Find Product Recommendation Pairs
Medium
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