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
1785 Minimum Elements to Add to Form a Given Sum Medium
ArrayGreedy
1786 Number of Restricted Paths From First to Last Node Medium
Dynamic ProgrammingGraphTopological Sort
1787 Make the XOR of All Segments Equal to Zero Hard
ArrayDynamic ProgrammingBit Manipulation
1788 Maximize the Beauty of the Garden Hard
ArrayHash TableGreedy
1789 Primary Department for Each Employee Easy
Database
1790 Check if One String Swap Can Make Strings Equal Easy
Hash TableStringCounting
1791 Find Center of Star Graph Easy
Graph
1792 Maximum Average Pass Ratio Medium
ArrayGreedyHeap (Priority Queue)
1793 Maximum Score of a Good Subarray Hard
ArrayTwo PointersBinary Search
1794 Count Pairs of Equal Substrings With Minimum Difference Medium
Hash TableStringGreedy
1795 Rearrange Products Table Easy
Database
1796 Second Largest Digit in a String Easy
Hash TableString
1797 Design Authentication Manager Medium
Hash TableLinked ListDesign
1798 Maximum Number of Consecutive Values You Can Make Medium
ArrayGreedySorting
1799 Maximize Score After N Operations Hard
ArrayMathDynamic Programming
Showing 1786-1800 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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