FleetCode
Video Solutions
Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.
39
With Videos
11
Easy
21
Medium
7
Hard
2601. Prime Subtraction Operation
MediumArrayBinary SearchGreedy
Watch Solutions55.9% acceptance
2603. Collect Coins in a Tree
HardArrayGraphTopological Sort
Watch Solutions39.6% acceptance
2604. Minimum Time to Eat All Grains
HardArrayBinary SearchSorting
Watch Solutions40.8% acceptance
2605. Form Smallest Number From Two Digit Arrays
EasyArrayEnumerationHash Table
Watch Solutions55.1% acceptance
2609. Find the Longest Balanced Substring of a Binary String
EasyString
Watch Solutions46.6% acceptance
2610. Convert an Array Into a 2D Array With Conditions
MediumArrayHash Table
Watch Solutions86.1% acceptance
2611. Mice and Cheese
MediumArrayGreedyHeap (Priority Queue)
Watch Solutions48.6% acceptance
2612. Minimum Reverse Operations
HardArrayBreadth-First SearchOrdered Set
Watch Solutions16.9% acceptance
2615. Sum of Distances
MediumArrayHash TablePrefix Sum
Watch Solutions50.2% acceptance
2616. Minimize the Maximum Difference of Pairs
MediumArrayBinary SearchGreedy
Watch Solutions50.9% acceptance
2617. Minimum Number of Visited Cells in a Grid
HardArrayBreadth-First SearchDynamic Programming
Watch Solutions24.1% acceptance
2618. Check if Object Instance of Class
Medium
Watch Solutions27.7% acceptance
2619. Array Prototype Last
Easy
Watch Solutions74.0% acceptance
2620. Counter
Easy
Watch Solutions81.6% acceptance
2621. Sleep
Easy
Watch Solutions87.3% acceptance
2622. Cache With Time Limit
Medium
Watch Solutions75.1% acceptance
2623. Memoize
Medium
Watch Solutions63.0% acceptance
2624. Snail Traversal
Medium
Watch Solutions66.0% acceptance
2625. Flatten Deeply Nested Array
Medium
Watch Solutions63.7% acceptance
2626. Array Reduce Transformation
Easy
Watch Solutions85.1% acceptance
2627. Debounce
Medium
Watch Solutions91.3% acceptance
2628. JSON Deep Equal
Medium
Watch Solutions38.8% acceptance
2629. Function Composition
Easy
Watch Solutions86.7% acceptance
2630. Memoize II
Hard
Watch Solutions31.5% acceptance
2631. Group By
Medium
Watch Solutions81.0% acceptance
2632. Curry
Medium
Watch Solutions89.2% acceptance
2633. Convert Object to JSON String
Medium
Watch Solutions77.4% acceptance
2634. Filter Elements from Array
Easy
Watch Solutions85.1% acceptance
2635. Apply Transform Over Each Element in Array
Easy
Watch Solutions86.0% acceptance
2636. Promise Pool
Medium
Watch Solutions79.8% acceptance
2637. Promise Time Limit
Medium
Watch Solutions82.0% acceptance
2640. Find the Score of All Prefixes of an Array
MediumArrayPrefix Sum
Watch Solutions72.9% acceptance
2641. Cousins in Binary Tree II
MediumBinary TreeBreadth-First SearchDepth-First Search
Watch Solutions75.8% acceptance
2643. Row With Maximum Ones
EasyArrayMatrix
Watch Solutions74.2% acceptance
2645. Minimum Additions to Make Valid String
MediumDynamic ProgrammingGreedyStack
Watch Solutions51.0% acceptance
2646. Minimize the Total Price of the Trips
HardArrayDepth-First SearchDynamic Programming
Watch Solutions48.5% acceptance
2648. Generate Fibonacci Sequence
Easy
Watch Solutions83.6% acceptance
2649. Nested Array Generator
Medium
Watch Solutions79.3% acceptance
2650. Design Cancellable Function
Hard
Watch Solutions49.6% 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.