FleetCode
Video Solutions
Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.
37
With Videos
9
Easy
22
Medium
6
Hard
2802. Find The K-th Lucky Number
MediumBit ManipulationMathString
Watch Solutions76.1% acceptance
2803. Factorial Generator
Easy
Watch Solutions85.8% acceptance
2804. Array Prototype ForEach
Easy
Watch Solutions88.2% acceptance
2805. Custom Interval
Medium
Watch Solutions81.7% acceptance
2807. Insert Greatest Common Divisors in Linked List
MediumLinked ListMathNumber Theory
Watch Solutions91.4% acceptance
2808. Minimum Seconds to Equalize a Circular Array
MediumArrayHash Table
Watch Solutions28.5% acceptance
2811. Check if it is Possible to Split Array
MediumArrayDynamic ProgrammingGreedy
Watch Solutions34.5% acceptance
2812. Find the Safest Path in a Grid
MediumArrayBinary SearchBreadth-First Search
Watch Solutions57.0% acceptance
2813. Maximum Elegance of a K-Length Subsequence
HardArrayGreedyHash Table
Watch Solutions29.2% acceptance
2814. Minimum Time Takes to Reach Destination Without Drowning
HardArrayBreadth-First SearchMatrix
Watch Solutions54.7% acceptance
2816. Double a Number Represented as a Linked List
MediumLinked ListMathStack
Watch Solutions61.4% acceptance
2818. Apply Operations to Maximize Score
HardArrayGreedyMath
Watch Solutions53.7% acceptance
2820. Election Results
Medium
Watch Solutions66.7% acceptance
2821. Delay the Resolution of Each Promise
Medium
Watch Solutions68.4% acceptance
2822. Inversion of Object
Easy
Watch Solutions58.8% acceptance
2823. Deep Object Filter
Medium
Watch Solutions54.6% acceptance
2824. Count Pairs Whose Sum is Less than Target
EasyArrayBinary SearchSorting
Watch Solutions87.4% acceptance
2825. Make String a Subsequence Using Cyclic Increments
MediumStringTwo Pointers
Watch Solutions65.7% acceptance
2827. Number of Beautiful Integers in the Range
HardDynamic ProgrammingMath
Watch Solutions23.1% acceptance
2828. Check if a String Is an Acronym of Words
EasyArrayString
Watch Solutions82.8% acceptance
2829. Determine the Minimum Sum of a k-avoiding Array
MediumGreedyMath
Watch Solutions61.0% acceptance
2831. Find the Longest Equal Subarray
MediumArrayBinary SearchHash Table
Watch Solutions38.4% acceptance
2832. Maximal Range That Each Element Is Maximum in It
MediumArrayMonotonic StackStack
Watch Solutions75.5% acceptance
2834. Find the Minimum Possible Sum of a Beautiful Array
MediumGreedyMath
Watch Solutions35.1% acceptance
2835. Minimum Operations to Form Subsequence With Target Sum
HardArrayBit ManipulationGreedy
Watch Solutions32.5% acceptance
2837. Total Traveled Distance
EasyDatabase
Watch Solutions76.1% acceptance
2838. Maximum Coins Heroes Can Collect
MediumArrayBinary SearchPrefix Sum
Watch Solutions68.7% acceptance
2839. Check if Strings Can be Made Equal With Operations I
EasyString
Watch Solutions61.8% acceptance
2840. Check if Strings Can be Made Equal With Operations II
MediumHash TableSortingString
Watch Solutions73.9% acceptance
2841. Maximum Sum of Almost Unique Subarray
MediumArrayHash TableSliding Window
Watch Solutions41.5% acceptance
2842. Count K-Subsequences of a String With Maximum Beauty
HardCombinatoricsGreedyHash Table
Watch Solutions30.2% acceptance
2843. Count Symmetric Integers
EasyEnumerationMath
Watch Solutions83.1% acceptance
2844. Minimum Operations to Make a Special Number
MediumEnumerationGreedyMath
Watch Solutions38.5% acceptance
2845. Count of Interesting Subarrays
MediumArrayHash TablePrefix Sum
Watch Solutions58.0% acceptance
2847. Smallest Number With Given Digit Product
MediumGreedyMath
Watch Solutions43.8% acceptance
2848. Points That Intersect With Cars
EasyArrayHash TablePrefix Sum
Watch Solutions73.4% acceptance
2849. Determine if a Cell Is Reachable at a Given Time
MediumMath
Watch Solutions37.2% 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.