Practice

Coding Problems

150 problemsPage 3 of 7

Medium
Longest Subarray with Sum K
HashingJavaPythonCC++JavaScript
Medium
Longest Consecutive Sequence
HashingJavaPythonCC++JavaScript
Medium
Group Anagrams
HashingJavaPythonCC++JavaScript
Easy
Common Elements in Three Arrays
HashingJavaPythonCC++JavaScript
Medium
Elements Appearing More Than N/K Times
HashingJavaPythonCC++JavaScript
Easy
Pair with Given Difference
HashingJavaPythonCC++JavaScript
Medium
Subarray with Equal 0s and 1s
HashingJavaPythonCC++JavaScript
Easy
Two Sum in Sorted Array
Two Pointer & Sliding WindowJavaPythonCC++JavaScript
Easy
Remove Duplicates Using Two Pointers
Two Pointer & Sliding WindowJavaPythonCC++JavaScript
Easy
Maximum Sum of K Consecutive Elements
Two Pointer & Sliding WindowJavaPythonCC++JavaScript
Medium
First Negative Number in Every Window
Two Pointer & Sliding WindowJavaPythonCC++JavaScript
Medium
Maximum Element in Every Window
Two Pointer & Sliding WindowJavaPythonCC++JavaScript
Easy
Create and Traverse a Linked List
Linked ListJavaPythonCC++JavaScript
Easy
Insert at Beginning of Linked List
Linked ListJavaPythonCC++JavaScript
Easy
Insert at End of Linked List
Linked ListJavaPythonCC++JavaScript
Easy
Delete a Node by Value
Linked ListJavaPythonCC++JavaScript
Easy
Reverse a Linked List
Linked ListJavaPythonCC++JavaScript
Easy
Find Middle Node
Linked ListJavaPythonCC++JavaScript
Easy
Find Nth Node from End
Linked ListJavaPythonCC++JavaScript
Medium
Detect Cycle in Linked List
Linked ListJavaPythonCC++JavaScript
Easy
Merge Two Sorted Linked Lists
Linked ListJavaPythonCC++JavaScript
Easy
Check Linked List Palindrome
Linked ListJavaPythonCC++JavaScript
Easy
Remove Duplicates from Sorted Linked List
Linked ListJavaPythonCC++JavaScript
Medium
Add Two Numbers Using Linked Lists
Linked ListJavaPythonCC++JavaScript

Coding Problems

Problems

Longest Subarray with Sum K

Longest Consecutive Sequence

Group Anagrams

Common Elements in Three Arrays

Elements Appearing More Than N/K Times

Pair with Given Difference

Subarray with Equal 0s and 1s

Two Sum in Sorted Array

Remove Duplicates Using Two Pointers

Maximum Sum of K Consecutive Elements

First Negative Number in Every Window

Maximum Element in Every Window

Create and Traverse a Linked List

Insert at Beginning of Linked List

Insert at End of Linked List

Delete a Node by Value

Reverse a Linked List

Find Middle Node

Find Nth Node from End

Detect Cycle in Linked List

Merge Two Sorted Linked Lists

Check Linked List Palindrome

Remove Duplicates from Sorted Linked List

Add Two Numbers Using Linked Lists