Master DSA Topics - April, 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
361 Check if Number is a Sum of Powers of Three Medium
Math
362 Check if Numbers Are Ascending in a Sentence Easy
String
363 Check if Object Instance of Class Medium
JavaScript
364 Check if One String Swap Can Make Strings Equal Easy
Hash TableStringCounting
365 Check if Point Is Reachable Hard
MathNumber Theory
366 Check If String Is a Prefix of Array Easy
ArrayTwo PointersString
367 Check if String Is Decomposable Into Value-Equal Substrings Easy
String
368 Check If String Is Transformable With Substring Sort Operations Hard
StringGreedySorting
369 Check if Strings Can be Made Equal With Operations I Easy
String
370 Check if Strings Can be Made Equal With Operations II Medium
Hash TableStringSorting
371 Check if The Number is Fascinating Easy
Hash TableMath
372 Check if the Rectangle Corner Is Reachable Hard
ArrayMathDepth-First Search
373 Check if the Sentence Is Pangram Easy
Hash TableString
374 Check if There is a Path With Equal Number of 0's And 1's Medium
ArrayDynamic ProgrammingMatrix
375 Check if There Is a Valid Parentheses String Path Hard
ArrayDynamic ProgrammingMatrix
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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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