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
1701. Average Waiting Time	Solve	Medium	Salesforce	Array Simulation
1702. Maximum Binary String After Change	Solve	Medium	Huawei	Greedy String
1703. Minimum Adjacent Swaps for K Consecutive Ones	Solve	Hard	Flipkart+2	Array Greedy+2
1704. Determine if String Halves Are Alike	Solve	Easy	Amazon	Counting String
1705. Maximum Number of Eaten Apples	Solve	Medium	Microsoft+1	Array Greedy+1
1706. Where Will the Ball Fall	Solve	Medium	Amazon+1	Array Matrix+1
1707. Maximum XOR With an Element From Array	Solve	Hard	Google	Array Bit Manipulation+1
1708. Largest Subarray Length K	Solve	Easy	Google	Array Greedy
1709. Biggest Window Between Visits	Solve	Medium	-	Database
1710. Maximum Units on a Truck	Solve	Easy	Amazon+2	Array Greedy+1
1711. Count Good Meals	Solve	Medium	Adobe+2	Array Hash Table
1712. Ways to Split Array Into Three Subarrays	Solve	Medium	Microsoft+1	Array Binary Search+2
1713. Minimum Operations to Make a Subsequence	Solve	Hard	Google	Array Binary Search+2
1714. Sum Of Special Evenly-Spaced Elements In Array	Solve	Hard	MakeMyTrip+1	Array Dynamic Programming
1715. Count Apples and Oranges	Solve	Medium	-	Database
1716. Calculate Money in Leetcode Bank	Solve	Easy	edabit	Math
1717. Maximum Score From Removing Substrings	Solve	Medium	Google	Greedy Stack+1
1718. Construct the Lexicographically Largest Valid Sequence	Solve	Medium	Facebook+1	Array Backtracking
1719. Number Of Ways To Reconstruct A Tree	Solve	Hard	Uber	Graph Tree
1720. Decode XORed Array	Solve	Easy	Google	Array Bit Manipulation
1721. Swapping Nodes in a Linked List	Solve	Medium	Amazon+2	Linked List Two Pointers
1722. Minimize Hamming Distance After Swap Operations	Solve	Medium	Google	Array Depth-First Search+1
1723. Find Minimum Time to Finish All Jobs	Solve	Hard	Adobe+2	Array Backtracking+3
1724. Checking Existence of Edge Length Limited Paths II	Solve	Hard	Google	Graph Minimum Spanning Tree+1
1725. Number Of Rectangles That Can Form The Largest Square	Solve	Easy	AllinCall	Array
1726. Tuple with Same Product	Solve	Medium	Google	Array Counting+1
1727. Largest Submatrix With Rearrangements	Solve	Medium	Directi+1	Array Greedy+2
1728. Cat and Mouse II	Solve	Hard	Google	Array Dynamic Programming+6
1729. Find Followers Count	Solve	Easy	Tesla+1	Database
1730. Shortest Path to Get Food	Solve	Medium	Amazon+3	Array Breadth-First Search+1
1731. The Number of Employees Which Report to Each Employee	Solve	Easy	Amazon+1	Database
1732. Find the Highest Altitude	Solve	Easy	Apple+4	Array Prefix Sum
1733. Minimum Number of People to Teach	Solve	Medium	Duolingo	Array Greedy+1
1734. Decode XORed Permutation	Solve	Medium	Amazon	Array Bit Manipulation
1735. Count Ways to Make Array With Product	Solve	Hard	Amazon	Array Combinatorics+3
1736. Latest Time by Replacing Hidden Digits	Solve	Easy	Google	Greedy String
1737. Change Minimum Characters to Satisfy One of Three Conditions	Solve	Medium	Google	Counting Hash Table+2
1738. Find Kth Largest XOR Coordinate Value	Solve	Medium	Google	Array Bit Manipulation+6
1739. Building Boxes	Solve	Hard	Codenation	Binary Search Greedy+1
1740. Find Distance in a Binary Tree	Solve	Medium	Amazon+5	Binary Tree Breadth-First Search+3
1741. Find Total Time Spent by Each Employee	Solve	Easy	Adobe+1	Database
1742. Maximum Number of Balls in a Box	Solve	Easy	AppDynamics+1	Counting Hash Table+1
1743. Restore the Array From Adjacent Pairs	Solve	Medium	Accenture+4	Array Depth-First Search+1
1744. Can You Eat Your Favorite Candy on Your Favorite Day?	Solve	Medium	FleetX	Array Prefix Sum
1745. Palindrome Partitioning IV	Solve	Hard	tcs	Dynamic Programming String
1746. Maximum Subarray Sum After One Operation	Solve	Medium	Sprinklr	Array Dynamic Programming
1747. Leetflex Banned Accounts	Solve	Medium	Audible	Database
1748. Sum of Unique Elements	Solve	Easy	Facebook	Array Counting+1
1749. Maximum Absolute Sum of Any Subarray	Solve	Medium	Adobe+1	Array Dynamic Programming
1750. Minimum Length of String After Deleting Similar Ends	Solve	Medium	Goldman Sachs	String Two Pointers