FleetCode
Video Solutions
Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.
36
With Videos
12
Easy
16
Medium
8
Hard
551. Student Attendance Record I
EasyString
Watch Solutions50.1% acceptance
552. Student Attendance Record II
HardDynamic Programming
Watch Solutions56.5% acceptance
554. Brick Wall
MediumArrayHash Table
Watch Solutions56.1% acceptance
555. Split Concatenated Strings
MediumArrayGreedyString
Watch Solutions43.4% acceptance
556. Next Greater Element III
MediumMathStringTwo Pointers
Watch Solutions35.2% acceptance
557. Reverse Words in a String III
EasyStringTwo Pointers
Watch Solutions84.0% acceptance
559. Maximum Depth of N-ary Tree
EasyBreadth-First SearchDepth-First SearchTree
Watch Solutions73.5% acceptance
560. Subarray Sum Equals K
MediumArrayHash TablePrefix Sum
Watch Solutions48.2% acceptance
562. Longest Line of Consecutive One in Matrix
MediumArrayDynamic ProgrammingMatrix
Watch Solutions50.5% acceptance
564. Find the Closest Palindrome
HardMathString
Watch Solutions31.6% acceptance
565. Array Nesting
MediumArrayDepth-First Search
Watch Solutions56.6% acceptance
568. Maximum Vacation Days
HardArrayDynamic ProgrammingMatrix
Watch Solutions46.7% acceptance
569. Median Employee Salary
HardDatabase
Watch Solutions65.9% acceptance
570. Managers with at Least 5 Direct Reports
MediumDatabase
Watch Solutions49.4% acceptance
571. Find Median Given Frequency of Numbers
HardDatabase
Watch Solutions42.4% acceptance
573. Squirrel Simulation
MediumArrayMath
Watch Solutions57.1% acceptance
574. Winning Candidate
MediumDatabase
Watch Solutions61.3% acceptance
576. Out of Boundary Paths
MediumDynamic Programming
Watch Solutions48.1% acceptance
577. Employee Bonus
EasyDatabase
Watch Solutions76.7% acceptance
578. Get Highest Answer Rate Question
MediumDatabase
Watch Solutions40.2% acceptance
579. Find Cumulative Salary of an Employee
HardDatabase
Watch Solutions47.8% acceptance
580. Count Student Number in Departments
MediumDatabase
Watch Solutions59.4% acceptance
581. Shortest Unsorted Continuous Subarray
MediumArrayGreedyMonotonic Stack
Watch Solutions38.1% acceptance
582. Kill Process
MediumArrayBreadth-First SearchDepth-First Search
Watch Solutions70.4% acceptance
583. Delete Operation for Two Strings
MediumDynamic ProgrammingString
Watch Solutions66.0% acceptance
584. Find Customer Referee
EasyDatabase
Watch Solutions71.2% acceptance
585. Investments in 2016
MediumDatabase
Watch Solutions49.4% acceptance
586. Customer Placing the Largest Number of Orders
EasyDatabase
Watch Solutions64.6% acceptance
588. Design In-Memory File System
HardDesignHash TableSorting
Watch Solutions48.0% acceptance
589. N-ary Tree Preorder Traversal
EasyDepth-First SearchStackTree
Watch Solutions76.7% acceptance
590. N-ary Tree Postorder Traversal
EasyDepth-First SearchStackTree
Watch Solutions81.0% acceptance
591. Tag Validator
HardStackString
Watch Solutions41.1% acceptance
595. Big Countries
EasyDatabase
Watch Solutions68.2% acceptance
596. Classes More Than 5 Students
EasyDatabase
Watch Solutions58.4% acceptance
597. Friend Requests I: Overall Acceptance Rate
EasyDatabase
Watch Solutions41.6% acceptance
599. Minimum Index Sum of Two Lists
EasyArrayHash TableString
Watch Solutions60.2% acceptance
Learn DSA with Video Solutions
Video solutions provide a visual, step-by-step approach to understanding Data Structures and Algorithms problems. Watching an expert walk through the thought process, from brute force to optimal solution, helps build the intuition needed for coding interviews.
How to Use Video Solutions Effectively
- Try the problem first: Spend at least 20-30 minutes attempting the problem before watching the video
- Pause and think: When the video mentions a key insight, pause and try to work through it yourself
- Code along: After understanding the approach, implement the solution on your own
- Review text solutions: Combine video walkthroughs with detailed text explanations for deeper understanding
Video Solutions by Difficulty
Start with Easy problems to build confidence and learn fundamental patterns. Progress to Medium problems where most interview questions fall. Hard problems help you prepare for the toughest interview rounds at top tech companies.