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
1275 Find Winner on a Tic Tac Toe Game Easy
ArrayHash TableMatrix
1276 Number of Burgers with No Waste of Ingredients Medium
Math
1277 Count Square Submatrices with All Ones Medium
ArrayDynamic ProgrammingMatrix
1278 Palindrome Partitioning III Hard
StringDynamic Programming
1279 Traffic Light Controlled Intersection Easy
Concurrency
1280 Students and Examinations Easy
Database
1281 Minimum Number of Flips to Convert Binary Matrix to Zero Matrix Hard
ArrayHash TableBit Manipulation
1281 Subtract the Product and Sum of Digits of an Integer Easy
Math
1282 Group the People Given the Group Size They Belong To Medium
ArrayHash TableGreedy
1283 Find the Smallest Divisor Given a Threshold Medium
ArrayBinary Search
1285 Find the Start and End Number of Continuous Ranges Medium
Database
1286 Iterator for Combination Medium
StringBacktrackingDesign
1286 Minimum Falling Path Sum II Hard
ArrayDynamic ProgrammingMatrix
1287 Element Appearing More Than 25% In Sorted Array Easy
Array
1288 Remove Covered Intervals Medium
ArraySorting
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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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