Master DSA Topics - February, 2026

Practice problems across 75+ categories

All Coding Problems

Practice coding problems across all companies and topics 3600 problems | 879 Easy | 1856 Medium | 842 Hard

# Problem Difficulty Topics
3405 Count the Number of Arrays with K Matching Adjacent Elements Hard
MathCombinatorics
3406 Find the Lexicographically Largest String From the Box II Hard
Two PointersString
3407 Substring Matching Pattern Easy
StringString Matching
3408 Design Task Manager Medium
Hash TableDesignHeap (Priority Queue)
3409 Longest Subsequence With Decreasing Adjacent Difference Medium
ArrayDynamic Programming
3410 Maximize Subarray Sum After Removing All Occurrences of One Element Hard
ArrayDynamic ProgrammingSegment Tree
3411 Maximum Subarray With Equal Products Easy
ArrayMathSliding Window
3412 Find Mirror Score of a String Medium
Hash TableStringStack
3413 Maximum Coins From K Consecutive Bags Medium
ArrayBinary SearchGreedy
3414 Maximum Score of Non-overlapping Intervals Hard
ArrayBinary SearchDynamic Programming
3415 Find Products with Three Consecutive Digits Easy
Database
3415 Maximum Amount of Money Robot Can Earn Medium
ArrayDynamic ProgrammingMatrix
3416 Minimize the Maximum Edge Weight of Graph Medium
Binary SearchDepth-First SearchBreadth-First Search
3416 Subsequences with a Unique Middle Mode II Hard
ArrayHash TableMath
3417 Zigzag Grid Traversal With Skip Easy
ArrayMatrixSimulation
Showing 3406-3420 of 3602
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public class MyFirstJavaProgram { Edit & Run

   /* This is my first java program.
    * This will print 'Hello, World!' as the output
    */

   public static void main(String []args) {
      System.out.println("Hello, World!"); // prints
   }
}

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