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
3060 User Activities within Time Bounds Hard
Database
3061 Calculate Trapping Rain Water Hard
Database
3062 Winner of the Linked List Game Easy
Linked List
3063 Linked List Frequency Unknown
Hash TableLinked ListCounting
3064 Guess the Number Using Bitwise Questions I Medium
Bit ManipulationInteractive
3065 Minimum Operations to Exceed Threshold Value I Easy
Array
3066 Minimum Operations to Exceed Threshold Value II Medium
ArrayHeap (Priority Queue)Simulation
3067 Count Pairs of Connectable Servers in a Weighted Tree Network Medium
ArrayTreeDepth-First Search
3068 Find the Maximum Sum of Node Values Hard
ArrayDynamic ProgrammingGreedy
3069 Distribute Elements Into Two Arrays I Easy
ArraySimulation
3070 Count Submatrices with Top-Left Element and Sum Less Than k Medium
ArrayMatrixPrefix Sum
3071 Minimum Operations to Write the Letter Y on a Grid Medium
ArrayHash TableMatrix
3072 Distribute Elements Into Two Arrays II Hard
ArrayBinary Indexed TreeSegment Tree
3073 Maximum Increasing Triplet Value Medium
ArrayOrdered Set
3074 Apple Redistribution into Boxes Easy
ArrayGreedySorting
Showing 3061-3075 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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