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
2055 Plates Between Candles Medium
ArrayStringBinary Search
2056 Number of Valid Move Combinations On Chessboard Hard
ArrayStringBacktracking
2057 Smallest Index With Equal Value Easy
Array
2058 Find the Minimum and Maximum Number of Nodes Between Critical Points Medium
Linked List
2059 Minimum Operations to Convert Number Medium
ArrayBreadth-First Search
2060 Check if an Original String Exists Given Two Encoded Strings Hard
StringDynamic Programming
2061 Number of Spaces Cleaning Robot Cleaned Medium
ArrayMatrixSimulation
2062 Count Vowel Substrings of a String Easy
Hash TableString
2063 Vowels of All Substrings Medium
MathStringDynamic Programming
2064 Minimized Maximum of Products Distributed to Any Store Medium
ArrayBinary SearchGreedy
2065 Maximum Path Quality of a Graph Hard
ArrayBacktrackingGraph
2066 Account Balance Medium
Database
2067 Number of Equal Count Substrings Medium
Hash TableStringSliding Window
2068 Check Whether Two Strings are Almost Equivalent Easy
Hash TableStringCounting
2068 Maximum Number of Tasks You Can Assign Hard
ArrayTwo PointersBinary Search
Showing 2056-2070 of 3602
1 ... 136 137 138 139 140 ... 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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