Preguntas de entrevistas para Junior development engineer

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Fortinet
Se le preguntó a Junior Software Development Engineer…8 de mayo de 2014

How to traverse through a binary tree?

1 respuestas

pre-order in-order post-order methods

Fortinet

How does a hashtable work?

1 respuestas

Hashtable is array of linkedlist.

Amazon

Given a list of pairs of start-end destinations, return an pair with the start and the end of a route that visit each destination.

1 respuestas

class Pair { var from: Int var to: Int var next: Pair? var last: Int // it has a valid value only for the first element in each list init(from: Int, to: Int) { self.from = from self.to = to self.last = to } static func == (left: Pair, right: Pair) -> Bool { return left.from == right.from && left.to == right.to } } class Problem { var pairs = [Pair]() func add(from: Int, to: Int) { let newPair = Pair(from: from, to: to) pairs.append(newPair) } func solve() { var prevCount = 0 while pairs.count > 1 && prevCount != pairs.count { prevCount = pairs.count let firstIndex = 0 let first = pairs[firstIndex] for (secondIndex, second) in pairs.enumerated().reversed() { if first !== second { if first.last == second.from { first.next = second first.last = second.last pairs.remove(at: secondIndex) break } else if first.from == second.last { second.next = first second.last = first.last pairs.remove(at: firstIndex) break } } } } guard pairs.count == 1 else { print("Can't combine all pairs to one list.") return } print("\(pairs[0].from) \(pairs[0].last)") } } Menos

Amazon

Check if the tree is degenerated. Write a code which prints order of pretender to English thorne (you had to use tree and add code to addBirth and addDeath)

1 respuestas

It is easy recursion

Beta Breakers

Fizz Buzz whiteboard problem

1 respuestas

Use the modulus operator

Bungee

Paging Thrashing Normalization and denormalization Coding questions Sql query Jaccard similarity in python etc

1 respuestas

Can you tell your current experience with the company

Fortinet

How to find the size of a large array of n chars if a chunk of them are 12 bytes. (I had no idea how to do this)

1 respuestas

(n+11)/12

Ratio

Asked for a walk-through of previous projects.

1 respuestas

They didn't seem to have looked at any of my portfolio or code in advance.

Amazon

Check if the tree is degenerated. Write a code which prints order of pretender to English thorne (you had to use tree and add code to addBirth and addDeath)

1 respuestas

It is easy recursion

Radius Systems

What is your mechanical engineering experience?

1 respuestas

I stated that I was put forward by a recruitment agency and that my experience and expertise was in polymers and materials science. To which I was told by the interviewers that there is no need for this as the materials are already established within the industry. They then became somewhat annoyed that I was not a mechanical engineer, even though there is no mention of this on my CV. I stated that this was the second time that a recruitment agency had incorrectly placed me for an interview in a company. With this, both sides agreed to effectively terminate the interview. Menos

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