SDE - 2

You are given a Singly Linked List of integers. You have to return true if the linked list is palindrome, else return false.

A Linked List is a palindrome if it reads the same from left to right and from right to left.

Example:

The lists (1 -> 2 -> 1), (3 -> 4 -> 4-> 3), and (1) are palindromes, while the lists (1 -> 2 -> 3) and (3 -> 4) are not.

Get the list of all hashtags from twitter.
Choose a optimal ds for storing them
Store frequency of each hashtag in a map
Sort the map by value and return first 5.

Create a rest microservice for managing basic operations related to a user profile.
Add a user
Edit profile
View profile
List all users

You are given an array of integers 'ARR' of size 'N' and another integer 'K'.

Your task is to find and return 'K'th smallest value present in the array.

Note: All the elements in the array are distinct.

Example

If 'N' is 5 and 'K' is 3 and the array is 7, 2, 6, 1, 9

Sorting the array we get 1, 2, 6, 7, 9

Hence the 3rd smallest number is 6.

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