Master DSA Topics - January, 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
346 Check if String Is Decomposable Into Value-Equal Substrings Easy
String
347 Check If String Is Transformable With Substring Sort Operations Hard
StringGreedySorting
348 Check if Strings Can be Made Equal With Operations I Easy
String
349 Check if Strings Can be Made Equal With Operations II Medium
Hash TableStringSorting
350 Check if The Number is Fascinating Easy
Hash TableMath
351 Check if the Rectangle Corner Is Reachable Hard
ArrayMathDepth-First Search
352 Check if the Sentence Is Pangram Easy
Hash TableString
353 Check if There is a Path With Equal Number of 0's And 1's Medium
ArrayDynamic ProgrammingMatrix
354 Check if There Is a Valid Parentheses String Path Hard
ArrayDynamic ProgrammingMatrix
355 Check if There is a Valid Partition For The Array Medium
ArrayDynamic Programming
356 Check if There is a Valid Path in a Grid Medium
ArrayDepth-First SearchBreadth-First Search
357 Check if Two Chessboard Squares Have the Same Color Easy
MathString
358 Check If Two Expression Trees are Equivalent Medium
Hash TableTreeDepth-First Search
359 Check If Two String Arrays are Equivalent Easy
ArrayString
360 Check if Word Can Be Placed In Crossword Medium
ArrayMatrixEnumeration
Showing 346-360 of 3600
1 ... 22 23 24 25 26 ... 240

Tutorials Library

Master any technology with our largest free online Library. Browse through 500+ tutorials across 10+ categories.

Python

Python Tutorial

Java

Java Tutorial

JavaScript

JavaScript

C++

C++ Tutorial

C#

C# Tutorial

Go

Go Tutorial

Rust

Rust Tutorial

TypeScript

TypeScript

Swift

Swift Tutorial

Kotlin

Kotlin Tutorial

Ruby

Ruby Tutorial

PHP

PHP Tutorial

C

C Tutorial

Scala

Scala Tutorial

Perl

Perl Tutorial

R

R Tutorial

Dart

Dart Tutorial

Lua

Lua Tutorial

MATLAB

MATLAB

Haskell

Haskell

Developer Toolbox

Powerful online tools to boost your productivity

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
   }
}

Start Coding in Seconds

Coding Ground For Developers

Code, Edit, Run and Share

Ignite your coding potential on Coding Ground - an immersive online platform for hands-on learning, collaboration, and skill development.