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
2100 Find Good Days to Rob the Bank Medium
ArrayDynamic ProgrammingPrefix Sum
2101 Detonate the Maximum Bombs Medium
ArrayMathDepth-First Search
2102 Sequentially Ordinal Rank Tracker Hard
DesignHeap (Priority Queue)Data Stream
2103 Maximum Fruits Harvested After at Most K Steps Hard
ArrayBinary SearchSliding Window
2103 Rings and Rods Easy
Hash TableString
2104 Sum of Subarray Ranges Medium
ArrayStackMonotonic Stack
2105 Watering Plants II Medium
ArrayTwo PointersSimulation
2107 Number of Unique Flavors After Sharing K Candies Medium
ArrayHash TableSliding Window
2108 Find First Palindromic String in the Array Easy
ArrayTwo PointersString
2109 Adding Spaces to a String Medium
ArrayTwo PointersString
2110 Number of Smooth Descent Periods of a Stock Medium
ArrayMathTwo Pointers
2111 Minimum Operations to Make the Array K-Increasing Hard
ArrayBinary Search
2112 Find All Possible Recipes from Given Supplies Medium
ArrayHash TableString
2112 The Airport With the Most Traffic Medium
Database
2113 Elements in Array After Removing and Replacing Elements Medium
Array
Showing 2101-2115 of 3602
1 ... 139 140 141 142 143 ... 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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