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
3450 Maximum Students on a Single Bench Easy
ArrayHash Table
3451 Find Invalid IP Addresses Hard
Database
3452 Sum of Good Numbers Easy
Array
3453 Separate Squares I Medium
ArrayBinary Search
3454 Separate Squares II Hard
ArrayBinary SearchSegment Tree
3455 Select K Disjoint Special Substrings Medium
Hash TableStringDynamic Programming
3455 Shortest Matching Substring Hard
Two PointersStringBinary Search
3456 Find Special Substring of Length K Easy
String
3457 Eat Pizzas! Medium
ArrayGreedySorting
3459 Length of Longest V-Shaped Diagonal Segment Hard
ArrayDynamic ProgrammingMemoization
3460 Longest Common Prefix After at Most One Removal Medium
Two PointersString
3461 Check If Digits Are Equal in String After Operations I Easy
MathStringSimulation
3461 Maximize the Distance Between Points on a Square Hard
ArrayBinary SearchGreedy
3462 Maximum Sum With at Most K Elements Medium
ArrayGreedySorting
3463 Check If Digits Are Equal in String After Operations II Hard
MathStringCombinatorics
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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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