FleetCode
Video Solutions
Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.
38
With Videos
8
Easy
21
Medium
9
Hard
2401. Longest Nice Subarray
MediumArrayBit ManipulationSliding Window
Watch Solutions64.8% acceptance
2402. Meeting Rooms III
HardArrayHash TableHeap (Priority Queue)
Watch Solutions51.6% acceptance
2404. Most Frequent Even Element
EasyArrayCountingHash Table
Watch Solutions54.0% acceptance
2405. Optimal Partition of String
MediumGreedyHash TableString
Watch Solutions78.0% acceptance
2406. Divide Intervals Into Minimum Number of Groups
MediumArrayGreedyHeap (Priority Queue)
Watch Solutions63.7% acceptance
2407. Longest Increasing Subsequence II
HardArrayBinary Indexed TreeDivide and Conquer
Watch Solutions26.1% acceptance
2410. Maximum Matching of Players With Trainers
MediumArrayGreedySorting
Watch Solutions75.2% acceptance
2411. Smallest Subarrays With Maximum Bitwise OR
MediumArrayBinary SearchBit Manipulation
Watch Solutions62.0% acceptance
2412. Minimum Money Required Before Transactions
HardArrayGreedySorting
Watch Solutions42.1% acceptance
2414. Length of the Longest Alphabetical Continuous Substring
MediumString
Watch Solutions61.0% acceptance
2415. Reverse Odd Levels of Binary Tree
MediumBinary TreeBreadth-First SearchDepth-First Search
Watch Solutions86.7% acceptance
2416. Sum of Prefix Scores of Strings
HardArrayCountingString
Watch Solutions60.6% acceptance
2418. Sort the People
EasyArrayHash TableSorting
Watch Solutions84.9% acceptance
2419. Longest Subarray With Maximum Bitwise AND
MediumArrayBit ManipulationBrainteaser
Watch Solutions65.4% acceptance
2420. Find All Good Indices
MediumArrayDynamic ProgrammingPrefix Sum
Watch Solutions40.8% acceptance
2422. Merge Operations to Turn Array Into a Palindrome
MediumArrayGreedyTwo Pointers
Watch Solutions69.0% acceptance
2423. Remove Letter To Equalize Frequency
EasyCountingHash TableString
Watch Solutions19.3% acceptance
2425. Bitwise XOR of All Pairings
MediumArrayBit ManipulationBrainteaser
Watch Solutions66.9% acceptance
2426. Number of Pairs Satisfying Inequality
HardArrayBinary Indexed TreeBinary Search
Watch Solutions47.6% acceptance
2427. Number of Common Factors
EasyEnumerationMathNumber Theory
Watch Solutions80.0% acceptance
2429. Minimize XOR
MediumBit ManipulationGreedy
Watch Solutions62.4% acceptance
2431. Maximize Total Tastiness of Purchased Fruits
MediumArrayDynamic Programming
Watch Solutions64.6% acceptance
2432. The Employee That Worked on the Longest Task
EasyArray
Watch Solutions51.5% acceptance
2433. Find The Original Array of Prefix Xor
MediumArrayBit Manipulation
Watch Solutions88.0% acceptance
2434. Using a Robot to Print the Lexicographically Smallest String
MediumGreedyHash TableStack
Watch Solutions62.5% acceptance
2435. Paths in Matrix Whose Sum Is Divisible by K
HardArrayDynamic ProgrammingMatrix
Watch Solutions58.7% acceptance
2436. Minimum Split Into Subarrays With GCD Greater Than One
MediumArrayDynamic ProgrammingGreedy
Watch Solutions70.2% acceptance
2437. Number of Valid Clock Times
EasyEnumerationString
Watch Solutions47.9% acceptance
2438. Range Product Queries of Powers
MediumArrayBit ManipulationPrefix Sum
Watch Solutions61.4% acceptance
2439. Minimize Maximum of Array
MediumArrayBinary SearchDynamic Programming
Watch Solutions46.4% acceptance
2441. Largest Positive Integer That Exists With Its Negative
EasyArrayHash TableSorting
Watch Solutions74.9% acceptance
2442. Count Number of Distinct Integers After Reverse Operations
MediumArrayCountingHash Table
Watch Solutions81.4% acceptance
2444. Count Subarrays With Fixed Bounds
HardArrayMonotonic QueueQueue
Watch Solutions69.2% acceptance
2445. Number of Nodes With Value One
MediumBinary TreeBreadth-First SearchDepth-First Search
Watch Solutions66.3% acceptance
2446. Determine if Two Events Have Conflict
EasyArrayString
Watch Solutions53.1% acceptance
2447. Number of Subarrays With GCD Equal to K
MediumArrayMathNumber Theory
Watch Solutions53.3% acceptance
2448. Minimum Cost to Make Array Equal
HardArrayBinary SearchGreedy
Watch Solutions46.7% acceptance
2449. Minimum Number of Operations to Make Arrays Similar
HardArrayGreedySorting
Watch Solutions61.8% 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.