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
2494. Merge Overlapping Events in the Same Hall	Solve	Hard	-	Database
2499. Minimum Total Cost to Make Arrays Unequal	Solve	Hard	Flipkart+1	Array Counting+2
2503. Maximum Number of Points From Grid Queries	Solve	Hard	JPMorgan	Array Breadth-First Search+5
2508. Add Edges to Make Degrees of All Nodes Even	Solve	Hard	HRT	Graph Hash Table
2509. Cycle Length Queries in a Tree	Solve	Hard	Arcesium	Array Binary Tree+1
2514. Count Anagrams	Solve	Hard	Mathworks	Combinatorics Counting+3
2518. Number of Great Partitions	Solve	Hard	Sprinklr	Array Dynamic Programming
2519. Count the Number of K-Big Indices	Solve	Hard	Amazon	Array Binary Indexed Tree+5
2524. Maximum Frequency Score of a Subarray	Solve	Hard	PayPal	Array Hash Table+3
2528. Maximize the Minimum Powered City	Solve	Hard	-	Array Binary Search+4
2532. Time to Cross a Bridge	Solve	Hard	LinkedIn	Array Heap (Priority Queue)+1
2534. Time Taken to Cross the Door	Solve	Hard	Amazon+1	Array Queue+1
2538. Difference Between Maximum and Minimum Price Sum	Solve	Hard	Directi+1	Array Depth-First Search+2
2543. Check if Point Is Reachable	Solve	Hard	PhonePe	Math Number Theory
2547. Minimum Cost to Split an Array	Solve	Hard	Indeed	Array Counting+2
2551. Put Marbles in Bags	Solve	Hard	Amazon+2	Array Greedy+2
2552. Count Increasing Quadruplets	Solve	Hard	SAP+1	Array Binary Indexed Tree+3
2561. Rearranging Fruits	Solve	Hard	Oracle	Array Greedy+1
2565. Subsequence With the Minimum Score	Solve	Hard	DoorDash+1	Binary Search String+1
2569. Handling Sum Queries After Update	Solve	Hard	Trilogy	Array Segment Tree
2573. Find the String with LCP	Solve	Hard	-	Array Dynamic Programming+4
2577. Minimum Time to Visit a Cell In a Grid	Solve	Hard	Atlassian	Array Breadth-First Search+4
2581. Count Number of Possible Root Nodes	Solve	Hard	-	Array Depth-First Search+3
2584. Split the Array to Make Coprime Products	Solve	Hard	Zomato	Array Hash Table+2
2585. Number of Ways to Earn Points	Solve	Hard	TuSimple	Array Dynamic Programming
2589. Minimum Time to Complete All Tasks	Solve	Hard	-	Array Binary Search+3
2603. Collect Coins in a Tree	Solve	Hard	Lucid+1	Array Graph+2
2604. Minimum Time to Eat All Grains	Solve	Hard	Confluent	Array Binary Search+2
2608. Shortest Cycle in a Graph	Solve	Hard	Zomato	Breadth-First Search Graph
2612. Minimum Reverse Operations	Solve	Hard	Infosys	Array Breadth-First Search+1
2613. Beautiful Pairs	Solve	Hard	-	Array Divide and Conquer+4
2617. Minimum Number of Visited Cells in a Grid	Solve	Hard	Huawei	Array Breadth-First Search+6
2630. Memoize II	Solve	Hard	-
2642. Design Graph With Shortest Path Calculator	Solve	Hard	Samsung	Design Graph+2
2646. Minimize the Total Price of the Trips	Solve	Hard	Adobe+1	Array Depth-First Search+3
2647. Color the Triangle Red	Solve	Hard	-	Array Math
2650. Design Cancellable Function	Solve	Hard	-
2659. Make Array Empty	Solve	Hard	TikTok	Array Binary Indexed Tree+5
2663. Lexicographically Smallest Beautiful String	Solve	Hard	Google	Greedy String
2675. Array of Objects to Matrix	Solve	Hard	-
2681. Power of Heroes	Solve	Hard	-	Array Dynamic Programming+3
2691. Immutability Helper	Solve	Hard	-
2699. Modify Graph Edge Weights	Solve	Hard	-	Graph Heap (Priority Queue)+1
2701. Consecutive Transactions with Increasing Amounts	Solve	Hard	-	Database
2702. Minimum Operations to Make Numbers Non-positive	Solve	Hard	-	Array Binary Search
2709. Greatest Common Divisor Traversal	Solve	Hard	Google	Array Math+2
2713. Maximum Strictly Increasing Cells in a Matrix	Solve	Hard	Amazon+1	Array Binary Search+6
2714. Find Shortest Path with K Hops	Solve	Hard	-	Graph Heap (Priority Queue)+1
2719. Count of Integers	Solve	Hard	Amazon+1	Dynamic Programming Math+1
2720. Popularity Percentage	Solve	Hard	-	Database