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
3315 Construct the Minimum Bitwise Array II Medium
ArrayBit Manipulation
3316 Find Maximum Removals From Source String Medium
ArrayHash TableTwo Pointers
3316 K-th Largest Perfect Subtree Size in Binary Tree Medium
TreeDepth-First SearchSorting
3317 Find the Number of Possible Ways for an Event Hard
MathDynamic ProgrammingCombinatorics
3318 Find X-Sum of All K-Long Subarrays I Easy
ArrayHash TableSliding Window
3320 Count The Number of Winning Sequences Hard
StringDynamic Programming
3321 Find X-Sum of All K-Long Subarrays II Hard
ArrayHash TableSliding Window
3322 Premier League Table Ranking III Medium
Database
3323 Minimize Connected Groups by Inserting Interval Medium
ArrayBinary SearchSliding Window
3324 Find the Sequence of Strings Appeared on the Screen Medium
StringSimulation
3325 Count Substrings With K-Frequency Characters I Medium
Hash TableStringSliding Window
3326 Minimum Division Operations to Make Array Non Decreasing Medium
ArrayMathGreedy
3327 Check if DFS Strings Are Palindromes Hard
ArrayHash TableString
3328 Find Cities in Each State II Medium
Database
3328 Find Subtree Sizes After Changes Medium
ArrayHash TableString
Showing 3316-3330 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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