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
3225 Maximum Score From Grid Operations Hard
ArrayDynamic ProgrammingMatrix
3226 Number of Bit Changes to Make Two Integers Equal Easy
Bit Manipulation
3227 Vowels Game in a String Medium
MathStringBrainteaser
3228 Maximum Number of Operations to Move Ones to the End Medium
StringGreedyCounting
3229 Minimum Operations to Make Array Equal to Target Hard
ArrayDynamic ProgrammingStack
3230 Customer Purchasing Behavior Analysis Medium
Database
3231 Minimum Number of Increasing Subsequence to Be Removed Hard
ArrayBinary Search
3232 Find if Digit Game Can Be Won Easy
ArrayMath
3233 Find the Count of Numbers Which Are Not Special Medium
ArrayMathNumber Theory
3234 Count the Number of Substrings With Dominant Ones Medium
StringEnumeration
3235 Check if the Rectangle Corner Is Reachable Hard
ArrayMathDepth-First Search
3236 CEO Subordinate Hierarchy Hard
Database
3237 Alt and Tab Simulation Medium
ArrayHash TableSimulation
3237 Minimum Number of Flips to Make Binary Grid Palindromic II Medium
ArrayTwo PointersMatrix
3238 Find the Number of Winning Players Easy
ArrayHash TableCounting
Showing 3226-3240 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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