Dashboard Questions Topics Companies Sheets

Data Structures & Algorithms

Practice 3,374+ coding problems from top companies. Master DSA concepts and ace your interviews.

3,374

Problems

840

Easy

1762

Medium

772

Hard

Difficulty

All3374 Easy840 Medium1762 Hard772

Title	Solve	Difficulty	Companies	Topics
708. Insert into a Sorted Circular Linked List	Solve	Medium	Facebook+2	Linked List
712. Minimum ASCII Delete Sum for Two Strings	Solve	Medium	Activision+2	Dynamic Programming String
713. Subarray Product Less Than K	Solve	Medium	Amazon+2	Array Binary Search+2
714. Best Time to Buy and Sell Stock with Transaction Fee	Solve	Medium	Adobe+4	Array Dynamic Programming+1
718. Maximum Length of Repeated Subarray	Solve	Medium	Indeed+2	Array Binary Search+4
720. Longest Word in Dictionary	Solve	Medium	Google	Array Hash Table+3
721. Accounts Merge	Solve	Medium	Amazon+6	Array Breadth-First Search+5
722. Remove Comments	Solve	Medium	Apple+7	Array String
723. Candy Crush	Solve	Medium	Bloomberg+3	Array Matrix+2
725. Split Linked List in Parts	Solve	Medium	Amazon+3	Linked List
729. My Calendar I	Solve	Medium	Amazon+2	Array Binary Search+3
731. My Calendar II	Solve	Medium	Google+1	Array Binary Search+4
735. Asteroid Collision	Solve	Medium	Amazon+15	Array Simulation+1
737. Sentence Similarity II	Solve	Medium	Amazon	Array Breadth-First Search+4
738. Monotone Increasing Digits	Solve	Medium	Amazon+2	Greedy Math
739. Daily Temperatures	Solve	Medium	Amazon+7	Array Monotonic Stack+1
740. Delete and Earn	Solve	Medium	Amazon+2	Array Dynamic Programming+1
742. Closest Leaf in a Binary Tree	Solve	Medium	Facebook	Binary Tree Breadth-First Search+2
743. Network Delay Time	Solve	Medium	Amazon+1	Breadth-First Search Depth-First Search+3
750. Number Of Corner Rectangles	Solve	Medium	Facebook	Array Dynamic Programming+2
751. IP to CIDR	Solve	Medium	Airbnb+1	Bit Manipulation String
752. Open the Lock	Solve	Medium	Amazon+4	Array Breadth-First Search+2
754. Reach a Number	Solve	Medium	Amazon	Binary Search Math
755. Pour Water	Solve	Medium	Airbnb	Array Simulation
756. Pyramid Transition Matrix	Solve	Medium	Airbnb+2	Bit Manipulation Breadth-First Search+1
758. Bold Words in String	Solve	Medium	Google	Array Hash Table+3
763. Partition Labels	Solve	Medium	Amazon+1	Greedy Hash Table+2
764. Largest Plus Sign	Solve	Medium	Uber	Array Dynamic Programming
767. Reorganize String	Solve	Medium	Adobe+17	Counting Greedy+4
769. Max Chunks To Make Sorted	Solve	Medium	Amazon+1	Array Greedy+3
775. Global and Local Inversions	Solve	Medium	Google	Array Math
776. Split BST	Solve	Medium	Google	Binary Search Tree Binary Tree+2
777. Swap Adjacent in LR String	Solve	Medium	Adobe+2	String Two Pointers
779. K-th Symbol in Grammar	Solve	Medium	Adobe+3	Bit Manipulation Math+1
781. Rabbits in Forest	Solve	Medium	Adobe+2	Array Greedy+2
784. Letter Case Permutation	Solve	Medium	Microsoft	Backtracking Bit Manipulation+1
785. Is Graph Bipartite?	Solve	Medium	Bunzo+10	Breadth-First Search Depth-First Search+2
786. K-th Smallest Prime Fraction	Solve	Medium	Pony.ai	Array Binary Search+3
787. Cheapest Flights Within K Stops	Solve	Medium	Airbnb+15	Breadth-First Search Depth-First Search+4
788. Rotated Digits	Solve	Medium	Facebook+1	Dynamic Programming Math
789. Escape The Ghosts	Solve	Medium	Google	Array Math
790. Domino and Tromino Tiling	Solve	Medium	Adobe+2	Dynamic Programming
791. Custom Sort String	Solve	Medium	Facebook+1	Hash Table Sorting+1
792. Number of Matching Subsequences	Solve	Medium	Google+1	Array Binary Search+5
794. Valid Tic-Tac-Toe State	Solve	Medium	Google+1	Array Matrix
795. Number of Subarrays with Bounded Maximum	Solve	Medium	Adobe+2	Array Two Pointers
797. All Paths From Source to Target	Solve	Medium	Adobe+7	Backtracking Breadth-First Search+2
799. Champagne Tower	Solve	Medium	Adobe+6	Dynamic Programming
802. Find Eventual Safe States	Solve	Medium	Amazon+4	Breadth-First Search Depth-First Search+2
807. Max Increase to Keep City Skyline	Solve	Medium	Amazon+1	Array Greedy+1