# Status Problem video Level Completes Likes
27

Remove Duplicates from an Unsorted Linked list

Beginner % 0
26

Check if one string is Rotation of another string

Beginner % 1
25

String Compression using count of repeated characters - Run Length Encoding

Beginner % 0
24

Replace Spaces with '%20' Without Using Default Functions

Medium % 0
23

Find Whether Two Strings are Permutation of each other

Beginner % 1
22

Find Intersection Point in Two Linked Lists

Medium % 0
21

Linked List cycle detection - Tortoise and Hare Algorithm

Medium % 0
20

Reverse a Linked List

Beginner % 0
19

Exploring All Paths, Including Diagonal, from Top Left to Bottom Right in 2D Array

Medium % 1
18

All Paths from Top Left to Bottom Right in 2D Array

Medium % 0
17

Merge or Combine Two Sorted Linked Lists

Medium % 0
15

Efficiently Rearrange Positive and Negative Numbers in Array on Each Side

Hard % 0
14

Longest Shared Prefix Sequence in a String

Medium % 0
12

Efficient Methods to Find Pairs with Sum K in an Array

Beginner % 0
11

Check If String has All Unique Characters

Beginner % 0
7

Determine If a String is Palindrome

Beginner % 0
6

Find a peak element in a Given Array

Beginner % 0
5

Find two Missing Numbers in a Sequence of Consecutive Numbers

Beginner % 0

Remove Duplicates from an Unsorted Linked list

Check if one string is Rotation of another string

String Compression using count of repeated characters - Run Length Encoding

Replace Spaces with '%20' Without Using Default Functions

Find Whether Two Strings are Permutation of each other

Find Intersection Point in Two Linked Lists

Linked List cycle detection - Tortoise and Hare Algorithm

Reverse a Linked List

Exploring All Paths, Including Diagonal, from Top Left to Bottom Right in 2D Array

All Paths from Top Left to Bottom Right in 2D Array

Merge or Combine Two Sorted Linked Lists

Efficiently Rearrange Positive and Negative Numbers in Array on Each Side

Longest Shared Prefix Sequence in a String

Efficient Methods to Find Pairs with Sum K in an Array

Check If String has All Unique Characters

Determine If a String is Palindrome

Find a peak element in a Given Array

Find two Missing Numbers in a Sequence of Consecutive Numbers