Master DSA Topics - January, 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
2806 Print Words Vertically Medium
ArrayStringSimulation
2807 Print Zero Even Odd Medium
Concurrency
2808 Prison Cells After N Days Medium
ArrayHash TableMath
2809 Probability of a Two Boxes Having The Same Number of Distinct Balls Hard
ArrayMathDynamic Programming
2810 Process Restricted Friend Requests Hard
Union FindGraph
2811 Process Tasks Using Servers Medium
ArrayHeap (Priority Queue)
2812 Product of Array Except Self Medium
ArrayPrefix Sum
2813 Product of the Last K Numbers Medium
ArrayMathDesign
2814 Product of Two Run-Length Encoded Arrays Medium
ArrayTwo Pointers
2815 Product Price at a Given Date Medium
Database
2816 Product Sales Analysis I Easy
Database
2817 Product Sales Analysis II Easy
Database
2818 Product Sales Analysis III Medium
Database
2819 Product Sales Analysis IV Medium
Database
2820 Product Sales Analysis V Easy
Database
Showing 2806-2820 of 3600
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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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