Hash Table Coding Practice Problems - Page 4 | TutorialsPoint

Tutorials Videos

Master DSA Topics - January, 2026

Practice problems across 75+ categories

Array

String

Hash Table

Dynamic Programming

Sorting

Greedy

Depth-First Search

See All Topics

73 Categories

Hash Table Coding Problems

Practice problems frequently asked at Hash Table • 719 problems | 168 Easy | 418 Medium | 127 Hard

#	Problem	Difficulty	Topics
46	Check if Array is Good	Easy	ArrayHash TableSorting
47	Check If Array Pairs Are Divisible by k	Medium	ArrayHash TableCounting
48	Check if DFS Strings Are Palindromes	Hard	ArrayHash TableString
49	Check if Every Row and Column Contains All Numbers	Easy	ArrayHash TableMatrix
50	Check If N and Its Double Exist	Easy	ArrayHash TableTwo Pointers
51	Check if Number Has Equal Digit Count and Digit Value	Easy	Hash TableStringCounting
52	Check if One String Swap Can Make Strings Equal	Easy	Hash TableStringCounting
53	Check if Strings Can be Made Equal With Operations II	Medium	Hash TableStringSorting
54	Check if The Number is Fascinating	Easy	Hash TableMath
55	Check if the Sentence Is Pangram	Easy	Hash TableString
56	Check If Two Expression Trees are Equivalent	Medium	Hash TableTreeDepth-First Search
57	Check Whether Two Strings are Almost Equivalent	Easy	Hash TableStringCounting
58	Cinema Seat Allocation	Medium	ArrayHash TableGreedy
59	Circular Array Loop	Medium	ArrayHash TableTwo Pointers
60	Clone Binary Tree With Random Pointer	Medium	Hash TableTreeDepth-First Search

Showing 46-60 of 719

1 2 3 4 5 6 ... 48

Tutorials Library

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

Programming Languages 20 Latest Technologies 12 Machine Learning 18 Computer Science 15 Web Development 25 Mobile Development 10 Databases 14

Python

Python Tutorial

Java

Java Tutorial

JavaScript

JavaScript

C++

C++ Tutorial

C# Tutorial

Go Tutorial

Rust

Rust Tutorial

TypeScript

TypeScript

Swift

Swift Tutorial

Kotlin

Kotlin Tutorial

Ruby

Ruby Tutorial

PHP

PHP Tutorial

C Tutorial

Scala

Scala Tutorial

Perl

Perl Tutorial

R Tutorial

Dart

Dart Tutorial

Lua

Lua Tutorial

MATLAB

MATLAB

Haskell

Haskell

Developer Toolbox

Powerful online tools to boost your productivity

JS Minifier

Whiteboard

Image Editor

Doc Viewer

LaTeX Editor

JSON Editor

QR Generator

Resume Builder

View All

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.

Java Compiler Python Compiler C++ Compiler HTML Editor