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
3165 Maximum Sum of Subsequence With Non-adjacent Elements Hard
ArrayDivide and ConquerDynamic Programming
3166 Calculate Parking Fees and Duration Medium
Database
3167 Better Compression of String Medium
Hash TableStringSorting
3168 Minimum Number of Chairs in a Waiting Room Easy
StringSimulation
3169 Count Days Without Meetings Medium
ArraySorting
3170 Lexicographically Minimum String After Removing Stars Medium
Hash TableStringStack
3171 Find Subarray With Bitwise OR Closest to K Hard
ArrayBinary SearchBit Manipulation
3172 Second Day Verification Easy
Database
3173 Bitwise OR of Adjacent Elements Easy
ArrayBit Manipulation
3173 Find the Maximum Length of a Good Subsequence I Medium
ArrayHash TableDynamic Programming
3174 Clear Digits Easy
StringStackSimulation
3175 Find The First Player to win K Games in a Row Medium
ArraySimulation
3177 Find the Maximum Length of a Good Subsequence II Hard
ArrayHash TableDynamic Programming
3178 Find the Child Who Has the Ball After K Seconds Easy
MathSimulation
3179 Find the N-th Value After K Seconds Medium
ArrayMathSimulation
Showing 3166-3180 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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