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Video Solutions

Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.

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2803. Factorial Generator

Easy
Watch Solutions85.8% acceptance

2804. Array Prototype ForEach

Easy
Watch Solutions88.2% acceptance

2822. Inversion of Object

Easy
Watch Solutions58.8% acceptance

2824. Count Pairs Whose Sum is Less than Target

EasyArrayBinary SearchSorting
Watch Solutions87.4% acceptance

2828. Check if a String Is an Acronym of Words

EasyArrayString
Watch Solutions82.8% acceptance

2837. Total Traveled Distance

EasyDatabase
Watch Solutions76.1% acceptance

2839. Check if Strings Can be Made Equal With Operations I

EasyString
Watch Solutions61.8% acceptance

2843. Count Symmetric Integers

EasyEnumerationMath
Watch Solutions83.1% acceptance

2848. Points That Intersect With Cars

EasyArrayHash TablePrefix Sum
Watch Solutions73.4% acceptance

2853. Highest Salaries Difference

EasyDatabase
Watch Solutions73.5% acceptance

2855. Minimum Right Shifts to Sort the Array

EasyArray
Watch Solutions57.6% acceptance

2859. Sum of Values at Indices With K Set Bits

EasyArrayBit Manipulation
Watch Solutions86.0% acceptance

2864. Maximum Odd Binary Number

EasyGreedyMathString
Watch Solutions83.0% acceptance

2869. Minimum Operations to Collect Elements

EasyArrayBit ManipulationHash Table
Watch Solutions62.2% acceptance

2873. Maximum Value of an Ordered Triplet I

EasyArray
Watch Solutions58.2% acceptance

2877. Create a DataFrame from List

Easy
Watch Solutions81.3% acceptance

2878. Get the Size of a DataFrame

Easy
Watch Solutions85.0% acceptance

2879. Display the First Three Rows

Easy
Watch Solutions93.0% acceptance

2880. Select Data

Easy
Watch Solutions79.2% acceptance

2881. Create a New Column

Easy
Watch Solutions90.1% acceptance

2882. Drop Duplicate Rows

Easy
Watch Solutions85.6% acceptance

2883. Drop Missing Data

Easy
Watch Solutions64.1% acceptance

2884. Modify Columns

Easy
Watch Solutions92.2% acceptance

2885. Rename Columns

Easy
Watch Solutions85.4% acceptance

2886. Change Data Type

Easy
Watch Solutions87.3% acceptance

2887. Fill Missing Data

Easy
Watch Solutions72.0% acceptance

2888. Reshape Data: Concatenate

Easy
Watch Solutions90.6% acceptance

2889. Reshape Data: Pivot

Easy
Watch Solutions82.9% acceptance

2890. Reshape Data: Melt

Easy
Watch Solutions86.1% acceptance

2891. Method Chaining

Easy
Watch Solutions76.3% acceptance

2894. Divisible and Non-divisible Sums Difference

EasyMath
Watch Solutions91.0% acceptance

2899. Last Visited Integers

EasyArraySimulation
Watch Solutions62.2% acceptance

2900. Longest Unequal Adjacent Groups Subsequence I

EasyArrayDynamic ProgrammingGreedy
Watch Solutions67.0% acceptance

2903. Find Indices With Index and Value Difference I

EasyArrayTwo Pointers
Watch Solutions60.2% acceptance

2913. Subarrays Distinct Element Sum of Squares I

EasyArrayHash Table
Watch Solutions80.1% acceptance

2923. Find Champion I

EasyArrayMatrix
Watch Solutions73.3% acceptance

2932. Maximum Strong Pair XOR I

EasyArrayBit ManipulationHash Table
Watch Solutions76.0% acceptance

2942. Find Words Containing Character

EasyArrayString
Watch Solutions90.4% acceptance

2946. Matrix Similarity After Cyclic Shifts

EasyArrayMathMatrix
Watch Solutions74.3% acceptance

2956. Find Common Elements Between Two Arrays

EasyArrayHash Table
Watch Solutions84.5% acceptance

2960. Count Tested Devices After Test Operations

EasyArrayCountingSimulation
Watch Solutions78.8% acceptance
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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.