Programador Web Interview Questions

710,392 programador web interview questions shared by candidates

given a number as a string write a algorithm to map to its oral description. I.e. "1" -> "11" //this can be thought of as there is one one. "11" -> "21" // there are two ones "21" -> "1211" // there is one two and one one "1211" -> "111221" ect. //there is one one, one two and two ones
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Software Engineer

Interviewed at Dropbox

3.9
Nov 5, 2011

given a number as a string write a algorithm to map to its oral description. I.e. "1" -> "11" //this can be thought of as there is one one. "11" -> "21" // there are two ones "21" -> "1211" // there is one two and one one "1211" -> "111221" ect. //there is one one, one two and two ones

You are going to take some numbers as an input from a file. You need to witer a program to find longest increasing sequence. You should process it as soon as you are taking an input. After finishing the last input immediately you should be able to tell the sequence. Input: 1 5 3 4 6 4 Output: 3 4 6
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Software Engineer

Interviewed at Meta

3.6
Sep 4, 2010

You are going to take some numbers as an input from a file. You need to witer a program to find longest increasing sequence. You should process it as soon as you are taking an input. After finishing the last input immediately you should be able to tell the sequence. Input: 1 5 3 4 6 4 Output: 3 4 6

Given two unsigned integer values, write a function that returns the first divided by the second. You cannot (of course) use div or mod operators - only addition, subtraction and multiplication. Discuss the strengths/weaknesses/algorithmic complexity of your solution. Is there a better way to do it? If so, what, and what is its complexity?
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Software Developer

Interviewed at Meta

3.6
Jul 30, 2015

Given two unsigned integer values, write a function that returns the first divided by the second. You cannot (of course) use div or mod operators - only addition, subtraction and multiplication. Discuss the strengths/weaknesses/algorithmic complexity of your solution. Is there a better way to do it? If so, what, and what is its complexity?

Design a system for counting how many times an item is clicked on. You need to record clicks and be able to report how many clicks for a given item. Be able to report which items are the most popular. Keep in mind scalability, since this is Amazon we're talking about.
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Software Development Engineer

Interviewed at Amazon

3.5
Sep 13, 2010

Design a system for counting how many times an item is clicked on. You need to record clicks and be able to report how many clicks for a given item. Be able to report which items are the most popular. Keep in mind scalability, since this is Amazon we're talking about.

Given the following list of objects {user, loginTime, logoutTime}. What is the maximum number of concurrent users logged in at the same time? Input: [ {user: A, login: 1, logout: 3}, {user: B, login: 3, logout: 4}, {user: C, login: 1, logout: 2}, {user: D, login: 123123123, logout: 987987987}, {user: E, login: 1, logout: 3} ] Output: 3
avatar

Software Developer

Interviewed at Booking.com

4.1
Aug 24, 2016

Given the following list of objects {user, loginTime, logoutTime}. What is the maximum number of concurrent users logged in at the same time? Input: [ {user: A, login: 1, logout: 3}, {user: B, login: 3, logout: 4}, {user: C, login: 1, logout: 2}, {user: D, login: 123123123, logout: 987987987}, {user: E, login: 1, logout: 3} ] Output: 3

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