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
2639 Design Graph With Shortest Path Calculator Hard
GraphDesignHeap (Priority Queue)
2639 Find the Width of Columns of a Grid Easy
ArrayMatrix
2640 Find the Score of All Prefixes of an Array Medium
ArrayPrefix Sum
2643 Row With Maximum Ones Easy
ArrayMatrix
2644 Find the Maximum Divisibility Score Easy
Array
2645 Minimum Additions to Make Valid String Medium
StringDynamic ProgrammingStack
2646 Minimize the Total Price of the Trips Hard
ArrayDynamic ProgrammingTree
2647 Color the Triangle Red Hard
ArrayMath
2648 Generate Fibonacci Sequence Easy
JavaScript
2649 Nested Array Generator Medium
JavaScript
2650 Design Cancellable Function Hard
JavaScript
2651 Calculate Delayed Arrival Time Easy
Math
2652 Sum Multiples Easy
Math
2653 Sliding Subarray Beauty Medium
ArrayHash TableSliding Window
2654 Minimum Number of Operations to Make All Array Elements Equal to 1 Medium
ArrayMathNumber Theory
Showing 2641-2655 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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