FleetCode
Video Solutions
Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.
34
With Videos
10
Easy
19
Medium
5
Hard
2551. Put Marbles in Bags
HardArrayGreedyHeap (Priority Queue)
Watch Solutions72.2% acceptance
2552. Count Increasing Quadruplets
HardArrayBinary Indexed TreeDynamic Programming
Watch Solutions34.6% acceptance
2553. Separate the Digits in an Array
EasyArraySimulation
Watch Solutions85.7% acceptance
2554. Maximum Number of Integers to Choose From a Range I
MediumArrayBinary SearchGreedy
Watch Solutions68.0% acceptance
2556. Disconnect Path in a Binary Matrix by at Most One Flip
MediumArrayBreadth-First SearchDepth-First Search
Watch Solutions27.8% acceptance
2557. Maximum Number of Integers to Choose From a Range II
MediumArrayBinary SearchGreedy
Watch Solutions34.9% acceptance
2558. Take Gifts From the Richest Pile
EasyArrayHeap (Priority Queue)Simulation
Watch Solutions75.5% acceptance
2559. Count Vowel Strings in Ranges
MediumArrayPrefix SumString
Watch Solutions67.8% acceptance
2560. House Robber IV
MediumArrayBinary Search
Watch Solutions64.8% acceptance
2561. Rearranging Fruits
HardArrayGreedyHash Table
Watch Solutions57.4% acceptance
2562. Find the Array Concatenation Value
EasyArraySimulationTwo Pointers
Watch Solutions71.9% acceptance
2563. Count the Number of Fair Pairs
MediumArrayBinary SearchSorting
Watch Solutions52.7% acceptance
2567. Minimum Score by Changing Two Elements
MediumArrayGreedySorting
Watch Solutions49.8% acceptance
2570. Merge Two 2D Arrays by Summing Values
EasyArrayHash TableTwo Pointers
Watch Solutions81.7% acceptance
2571. Minimum Operations to Reduce an Integer to 0
MediumBit ManipulationDynamic ProgrammingGreedy
Watch Solutions62.9% acceptance
2572. Count the Number of Square-Free Subsets
MediumArrayBit ManipulationBitmask
Watch Solutions26.5% acceptance
2573. Find the String with LCP
HardArrayDynamic ProgrammingGreedy
Watch Solutions63.3% acceptance
2574. Left and Right Sum Differences
EasyArrayPrefix Sum
Watch Solutions89.5% acceptance
2575. Find the Divisibility Array of a String
MediumArrayMathString
Watch Solutions36.5% acceptance
2577. Minimum Time to Visit a Cell In a Grid
HardArrayBreadth-First SearchGraph
Watch Solutions56.3% acceptance
2578. Split With Minimum Sum
EasyGreedyMathSorting
Watch Solutions73.4% acceptance
2579. Count Total Number of Colored Cells
MediumMath
Watch Solutions66.1% acceptance
2580. Count Ways to Group Overlapping Ranges
MediumArraySorting
Watch Solutions39.1% acceptance
2582. Pass the Pillow
EasyMathSimulation
Watch Solutions56.8% acceptance
2583. Kth Largest Sum in a Binary Tree
MediumBinary TreeBreadth-First SearchSorting
Watch Solutions59.4% acceptance
2586. Count the Number of Vowel Strings in Range
EasyArrayCountingString
Watch Solutions74.3% acceptance
2591. Distribute Money to Maximum Children
EasyGreedyMath
Watch Solutions20.5% acceptance
2592. Maximize Greatness of an Array
MediumArrayGreedySorting
Watch Solutions62.0% acceptance
2593. Find Score of an Array After Marking All Elements
MediumArrayHash TableHeap (Priority Queue)
Watch Solutions64.5% acceptance
2594. Minimum Time to Repair Cars
MediumArrayBinary Search
Watch Solutions59.6% acceptance
2597. The Number of Beautiful Subsets
MediumArrayBacktrackingCombinatorics
Watch Solutions50.9% acceptance
2598. Smallest Missing Non-negative Integer After Operations
MediumArrayGreedyHash Table
Watch Solutions56.0% acceptance
2599. Make the Prefix Sum Non-negative
MediumArrayGreedyHeap (Priority Queue)
Watch Solutions51.9% acceptance
2600. K Items With the Maximum Sum
EasyGreedyMath
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.