Master DSA Topics - April, 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
871 Design Task Manager Medium
Hash TableDesignHeap (Priority Queue)
872 Design Tic-Tac-Toe Medium
ArrayHash TableDesign
873 Design Twitter Medium
Hash TableLinked ListDesign
874 Design Underground System Medium
Hash TableStringDesign
875 Design Video Sharing Platform Hard
Hash TableStackDesign
876 Destination City Easy
ArrayHash TableString
877 Destroy Sequential Targets Medium
ArrayHash TableCounting
878 Destroying Asteroids Medium
ArrayGreedySorting
879 Detect Capital Easy
String
880 Detect Cycles in 2D Grid Medium
ArrayDepth-First SearchBreadth-First Search
881 Detect Pattern of Length M Repeated K or More Times Easy
ArrayEnumeration
882 Detect Squares Medium
ArrayHash TableDesign
883 Determine Color of a Chessboard Square Easy
MathString
884 Determine if a Cell Is Reachable at a Given Time Medium
Math
885 Determine if String Halves Are Alike Easy
StringCounting
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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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