SDE - Intern

Design & Implement a service which allows users to get Lucky Draw Raffle tickets and use one lucky draw raffle ticket to participate in a lucky draw raffle. 

- Design an API which allows users to get the raffle tickets. This API can be consumed in a lot of ways like We can call this API after the user has placed an Order. 

- Design an API which shows the next Lucky Draw Event timing & the corresponding reward. For example - Lucky Draw can run everyday at 8AM. Reward on say 10th Feb is Phone, 11th Feb is Washing Machine etc 

- Design an API which allows users to participate in the game. Once a user has participated with a raffle ticket, she shouldn’t be able to participate again in the same event.

 - Design an API which lists all the winners of all the events in the last one week. - Compute the winner for the event and announce the winner.

You are given two Singly Linked Lists of integers, which may have an intersection point.

Your task is to return the first intersection node. If there is no intersection, return NULL.

Example:-

The Linked Lists, where a1, a2, c1, c2, c3 is the first linked list and b1, b2, b3, c1, c2, c3 is the second linked list, merging at node c1.