FleetCode
Video Solutions
Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.
44
With Videos
0
Easy
44
Medium
0
Hard
Filter by Difficulty
Browse video solutions by difficulty level
3138. Minimum Length of Anagram Concatenation
MediumCountingHash TableString
Watch Solutions39.8% acceptance
3140. Consecutive Available Seats II
MediumDatabase
Watch Solutions58.6% acceptance
3143. Maximum Points Inside the Square
MediumArrayBinary SearchHash Table
Watch Solutions39.9% acceptance
3144. Minimum Substring Partition of Equal Character Frequency
MediumCountingDynamic ProgrammingHash Table
Watch Solutions40.5% acceptance
3147. Taking Maximum Energy From the Mystic Dungeon
MediumArrayPrefix Sum
Watch Solutions61.0% acceptance
3152. Special Array II
MediumArrayBinary SearchPrefix Sum
Watch Solutions45.8% acceptance
3153. Sum of Digit Differences of All Pairs
MediumArrayCountingHash Table
Watch Solutions43.3% acceptance
3157. Find the Level of Tree with Minimum Sum
MediumBinary TreeBreadth-First SearchDepth-First Search
Watch Solutions69.6% acceptance
3159. Find Occurrences of an Element in an Array
MediumArrayHash Table
Watch Solutions73.6% acceptance
3160. Find the Number of Distinct Colors Among the Balls
MediumArrayHash TableSimulation
Watch Solutions54.2% acceptance
3163. String Compression III
MediumString
Watch Solutions67.0% acceptance
3164. Find the Number of Good Pairs II
MediumArrayHash Table
Watch Solutions26.6% acceptance
3166. Calculate Parking Fees and Duration
MediumDatabase
Watch Solutions53.0% acceptance
3167. Better Compression of String
MediumCountingHash TableSorting
Watch Solutions75.3% acceptance
3169. Count Days Without Meetings
MediumArraySorting
Watch Solutions48.1% acceptance
3170. Lexicographically Minimum String After Removing Stars
MediumGreedyHash TableHeap (Priority Queue)
Watch Solutions51.0% acceptance
3175. Find The First Player to win K Games in a Row
MediumArraySimulation
Watch Solutions40.1% acceptance
3176. Find the Maximum Length of a Good Subsequence I
MediumArrayDynamic ProgrammingHash Table
Watch Solutions32.6% acceptance
3179. Find the N-th Value After K Seconds
MediumArrayCombinatoricsMath
Watch Solutions54.0% acceptance
3180. Maximum Total Reward Using Operations I
MediumArrayDynamic Programming
Watch Solutions30.8% acceptance
3182. Find Top Scoring Students
MediumDatabase
Watch Solutions49.4% acceptance
3183. The Number of Ways to Make the Sum
MediumArrayDynamic Programming
Watch Solutions50.8% acceptance
3185. Count Pairs That Form a Complete Day II
MediumArrayCountingHash Table
Watch Solutions43.7% acceptance
3186. Maximum Total Damage With Spell Casting
MediumArrayBinary SearchCounting
Watch Solutions45.1% acceptance
3189. Minimum Moves to Get a Peaceful Board
MediumArrayCounting SortGreedy
Watch Solutions75.9% acceptance
3191. Minimum Operations to Make Binary Array Elements Equal to One I
MediumArrayBit ManipulationPrefix Sum
Watch Solutions80.4% acceptance
3192. Minimum Operations to Make Binary Array Elements Equal to One II
MediumArrayDynamic ProgrammingGreedy
Watch Solutions65.1% acceptance
3195. Find the Minimum Area to Cover All Ones I
MediumArrayMatrix
Watch Solutions78.2% acceptance
3196. Maximize Total Cost of Alternating Subarrays
MediumArrayDynamic Programming
Watch Solutions29.6% acceptance
3201. Find the Maximum Length of Valid Subsequence I
MediumArrayDynamic Programming
Watch Solutions54.9% acceptance
3202. Find the Maximum Length of Valid Subsequence II
MediumArrayDynamic Programming
Watch Solutions57.2% acceptance
3204. Bitwise User Permissions Analysis
MediumDatabase
Watch Solutions94.3% acceptance
3207. Maximum Points After Enemy Battles
MediumArrayGreedy
Watch Solutions33.2% acceptance
3208. Alternating Groups II
MediumArraySliding Window
Watch Solutions59.9% acceptance
3211. Generate Binary Strings Without Adjacent Zeros
MediumBacktrackingBit ManipulationString
Watch Solutions88.3% acceptance
3212. Count Submatrices With Equal Frequency of X and Y
MediumArrayMatrixPrefix Sum
Watch Solutions69.5% acceptance
3217. Delete Nodes From Linked List Present in Array
MediumArrayHash TableLinked List
Watch Solutions69.5% acceptance
3218. Minimum Cost for Cutting Cake I
MediumArrayDynamic ProgrammingGreedy
Watch Solutions58.5% acceptance
3220. Odd and Even Transactions
MediumDatabase
Watch Solutions69.8% acceptance
3223. Minimum Length of String After Operations
MediumCountingHash TableString
Watch Solutions75.0% acceptance
3227. Vowels Game in a String
MediumBrainteaserGame TheoryMath
Watch Solutions77.1% acceptance
3228. Maximum Number of Operations to Move Ones to the End
MediumCountingGreedyString
Watch Solutions67.2% acceptance
3230. Customer Purchasing Behavior Analysis
MediumDatabase
Watch Solutions37.8% acceptance
3233. Find the Count of Numbers Which Are Not Special
MediumArrayMathNumber Theory
Watch Solutions28.3% 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.