All Problems

48 problems total

Array (1905)Sorting (440)Depth First Search (316)Database (301)Breadth First Search (241)Tree (240)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)

All Topics(4301)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)Algorithms(3944)

Filter by Difficulty:

Easy Medium Hard

🎥Has Video

Company:

Active filters:Category: Recursion×

Title	Difficulty	Videos	Companies
Add Two Numbers represented as Linked List in Reversed Order	medium	-	adobe aetion airbnb
Regular Expression Matching	hard	-	adobe airbnb alibaba
Merge Two Sorted Linked Lists	easy		adobe airbnb alibaba
Swap Nodes in Pairs	medium	-	adobe amazon apple
K Reverse a linked list	hard	-	adobe amazon apple
Wildcard Matching	hard	-	adobe amazon bloomberg
Implement Power Function 1	medium	-	adobe amazon apple
Kth Permutation Sequence of Numbers 1 to N	hard	-	amazon apple facebook
Unique 3-Digit Even Numbers	easy	-
Reorder List such that i-th element points to n-i-th element	medium		adobe amazon apple
Remove Linked List Elements	easy	-	adobe amazon apple
Reverse Linked List	easy		adobe alibaba amazon
Basic Calculator 1	hard	-	adobe amazon bloomberg
Power of Two	easy	-	amazon apple google
Number of Digit One	hard	-	amazon apple
Palindrome Linked List	easy	-	adobe amazon apple
Different Ways to Add Parentheses	medium	-	amazon cisco citadel
Strobogrammatic Number 2 - Generate for length n	medium	-	cisco facebook google
Strobogrammatic Number 3 - Count in Range	hard	-	facebook google
Prune Unary nodes to form Full Binary Tree	medium	-	yahoo
Verify Preorder Sequence in Binary Search Tree	medium	-	mathworks uber zenefits
Integer to English Words	hard		amazon apple barclays
Power of Three	easy	-	apple goldman-sachs google
Power of Four	easy	-	two-sigma
Elimination Game	medium	-	amazon bloomberg quora
Decode String	medium	-	alibaba amazon appdynamics
Ternary Expression Parser	medium	-	snapchat
Predict the Winner	medium	-	amazon apple google
Generate Nth Fibonacci Number	easy		amazon apple barclays
Output Contest Matches	medium	-	google
Parse Lisp Expression	hard	-	affirm google
Special Binary String	hard	-	citrix coursera quip
Basic Calculator 4	hard	-	amazon google indeed
Basic Calculator 3	hard	-	amazon apple bytedance
Split BST	medium	-	amazon coupang facebook
K-th Symbol in Grammar	medium	-	amazon google
All Possible Full Binary Trees	medium	-	google oracle
Parsing A Boolean Expression	hard	-	affinity
Print Immutable Linked List in Reverse	medium	-	google
Find Kth Bit in Nth Binary String	medium	-
Maximize Number of Nice Divisors	hard	-
Find the Winner of the Circular Game	medium		bloomberg
Count Good Numbers	medium	-
Minimum Non-Zero Product of the Array Elements	medium	-
Remove nodes in linked list with greater value on right side	medium	-
Count Collisions of Monkeys on a Polygon	medium	-
Find the K-th Character in String Game I	easy	-
Find the K-th Character in String Game II	hard	-

Loading problems...

All Problems

Filter by Difficulty:

Tag:

Company:

All Problems

Filter by Difficulty:

Tag:

Company: