Master DSA Topics - January, 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
2011 Maximum Strength of K Disjoint Subarrays Hard
ArrayDynamic ProgrammingPrefix Sum
2012 Maximum Strictly Increasing Cells in a Matrix Hard
ArrayHash TableBinary Search
2013 Maximum Strong Pair XOR I Easy
ArrayHash TableBit Manipulation
2014 Maximum Strong Pair XOR II Hard
ArrayHash TableBit Manipulation
2015 Maximum Students on a Single Bench Easy
ArrayHash Table
2016 Maximum Students Taking Exam Hard
ArrayDynamic ProgrammingBit Manipulation
2017 Maximum Subarray Medium
ArrayDivide and ConquerDynamic Programming
2018 Maximum Subarray Min-Product Medium
ArrayStackMonotonic Stack
2019 Maximum Subarray Sum After One Operation Medium
ArrayDynamic Programming
2020 Maximum Subarray Sum With Length Divisible by K Medium
ArrayHash TablePrefix Sum
2021 Maximum Subarray Sum with One Deletion Medium
ArrayDynamic Programming
2022 Maximum Subarray With Equal Products Easy
ArrayMathSliding Window
2023 Maximum Subsequence Score Medium
ArrayGreedySorting
2024 Maximum Subtree of the Same Color Medium
ArrayDynamic ProgrammingTree
2025 Maximum Sum BST in Binary Tree Hard
Dynamic ProgrammingTreeDepth-First Search
Showing 2011-2025 of 3600
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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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