(Easy ,I think majority of you can skip this as it is an easy problem thus it may waste your time)
https://www.hackerrank.com/contests/welcome-challange-by-mm/challenges/happy-game
Basic graph/graph traversal problem created by me.
(Easy ,I think majority of you can skip this as it is an easy problem thus it may waste your time)
https://www.hackerrank.com/contests/welcome-challange-by-mm/challenges/happy-game