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I've been working in some HackerRank exercices in which a queue implementation was required, so I implemented it myself using an array and a couple of indexes (head and tail). However, I see that in many answers people refer to to the List/Queue/Map/Set classes defined in java.util.* Can we also use them to solve the exercices? I thought that we were required to implement all these things manually in the exercices (specially for selection process exams). Could you please clarify it?
Tree: Level Order Traversal
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Hi @hammeramr,
I've been working in some HackerRank exercices in which a queue implementation was required, so I implemented it myself using an array and a couple of indexes (head and tail). However, I see that in many answers people refer to to the List/Queue/Map/Set classes defined in java.util.* Can we also use them to solve the exercices? I thought that we were required to implement all these things manually in the exercices (specially for selection process exams). Could you please clarify it?
Best wishes,
jscupc