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
2250 Count Number of Rectangles Containing Each Point Medium
ArrayHash TableBinary Search
2251 Design Video Sharing Platform Hard
Hash TableStackDesign
2251 Number of Flowers in Full Bloom Hard
ArrayHash TableBinary Search
2252 Dynamic Pivoting of a Table Hard
Database
2253 Dynamic Unpivoting of a Table Hard
Database
2255 Count Prefixes of a Given String Easy
ArrayString
2255 Escape the Spreading Fire Hard
ArrayBinary SearchBreadth-First Search
2256 Minimum Average Difference Medium
ArrayPrefix Sum
2257 Count Unguarded Cells in the Grid Medium
ArrayMatrixSimulation
2259 Remove Digit From Number to Maximize Result Easy
StringGreedyEnumeration
2260 Minimum Consecutive Cards to Pick Up Medium
ArrayHash TableSliding Window
2261 K Divisible Elements Subarrays Medium
ArrayHash TableTrie
2262 Total Appeal of A String Hard
Hash TableStringDynamic Programming
2263 Make Array Non-decreasing or Non-increasing Hard
Dynamic ProgrammingGreedy
2264 Largest 3-Same-Digit Number in String Easy
String
Showing 2251-2265 of 3602
1 ... 149 150 151 152 153 ... 241

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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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