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
2651. Calculate Delayed Arrival Time	Solve	Easy	-	Math
2652. Sum Multiples	Solve	Easy	Yahoo	Math
2653. Sliding Subarray Beauty	Solve	Medium	-	Array Hash Table+1
2654. Minimum Number of Operations to Make All Array Elements Equal to 1	Solve	Medium	-	Array Math+1
2655. Find Maximal Uncovered Ranges	Solve	Medium	-	Array Sorting
2656. Maximum Sum With Exactly K Elements	Solve	Easy	-	Array Greedy
2657. Find the Prefix Common Array of Two Arrays	Solve	Medium	Yandex	Array Bit Manipulation+1
2658. Maximum Number of Fish in a Grid	Solve	Medium	Adobe	Array Breadth-First Search+3
2659. Make Array Empty	Solve	Hard	TikTok	Array Binary Indexed Tree+5
2660. Determine the Winner of a Bowling Game	Solve	Easy	Amazon+1	Array Simulation
2661. First Completely Painted Row or Column	Solve	Medium	Citadel	Array Hash Table+1
2662. Minimum Cost of a Path With Special Roads	Solve	Medium	Samsung	Array Graph+2
2663. Lexicographically Smallest Beautiful String	Solve	Hard	Google	Greedy String
2664. The Knight’s Tour	Solve	Medium	Microsoft	Array Backtracking+1
2665. Counter II	Solve	Easy	-
2666. Allow One Function Call	Solve	Easy	-
2667. Create Hello World Function	Solve	Easy	-
2668. Find Latest Salaries	Solve	Easy	-	Database
2669. Count Artist Occurrences On Spotify Ranking List	Solve	Easy	-	Database
2670. Find the Distinct Difference Array	Solve	Easy	-	Array Hash Table
2671. Frequency Tracker	Solve	Medium	-	Design Hash Table
2672. Number of Adjacent Elements With the Same Color	Solve	Medium	-	Array
2673. Make Costs of Paths Equal in a Binary Tree	Solve	Medium	DE Shaw	Array Binary Tree+3
2674. Split a Circular Linked List	Solve	Medium	-	Linked List Two Pointers
2675. Array of Objects to Matrix	Solve	Hard	-
2676. Throttle	Solve	Medium	-
2677. Chunk Array	Solve	Easy	-
2678. Number of Senior Citizens	Solve	Easy	-	Array String
2679. Sum in a Matrix	Solve	Medium	-	Array Heap (Priority Queue)+3
2680. Maximum OR	Solve	Medium	-	Array Bit Manipulation+2
2681. Power of Heroes	Solve	Hard	-	Array Dynamic Programming+3
2682. Find the Losers of the Circular Game	Solve	Easy	-	Array Hash Table+1
2683. Neighboring Bitwise XOR	Solve	Medium	-	Array Bit Manipulation
2684. Maximum Number of Moves in a Grid	Solve	Medium	Amazon	Array Dynamic Programming+1
2685. Count the Number of Complete Components	Solve	Medium	-	Breadth-First Search Depth-First Search+2
2686. Immediate Food Delivery III	Solve	Medium	-	Database
2687. Bikes Last Time Used	Solve	Easy	-	Database
2688. Find Active Users	Solve	Medium	-	Database
2689. Extract Kth Character From The Rope Tree	Solve	Easy	Google	Binary Tree Depth-First Search+1
2690. Infinite Method Object	Solve	Easy	-
2691. Immutability Helper	Solve	Hard	-
2692. Make Object Immutable	Solve	Medium	-
2693. Call Function with Custom Context	Solve	Medium	-
2694. Event Emitter	Solve	Medium	-
2695. Array Wrapper	Solve	Easy	-
2696. Minimum String Length After Removing Substrings	Solve	Easy	Yelp	Simulation Stack+1
2697. Lexicographically Smallest Palindrome	Solve	Easy	-	Greedy String+1
2698. Find the Punishment Number of an Integer	Solve	Medium	-	Backtracking Math
2699. Modify Graph Edge Weights	Solve	Hard	-	Graph Heap (Priority Queue)+1
2700. Differences Between Two Objects	Solve	Medium	-