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A company uses a format to exchange messages with us. You need to validate the input. The character encoding ASCII. Valid characters are between 0x20 (space) and 0x7E (~). write validate function to generate valid output or the error message.
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Senior Java Developer

Interviewed at Atlassian

3.1★
Apr 13, 2016

A company uses a format to exchange messages with us. You need to validate the input. The character encoding ASCII. Valid characters are between 0x20 (space) and 0x7E (~). write validate function to generate valid output or the error message.

Given a formula (string) and a dict, replace each key that appears in the formula with its value. "CONCATENATE("#first_name#", " - ", 30)" { 'first_name': "Moshe", 'age': 20, 'status': "Done"} Result: "CONCATENATE("Moshe", " - ", 30)"
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Full Stack Developer

Interviewed at monday.com

4★
Jun 7, 2020

Given a formula (string) and a dict, replace each key that appears in the formula with its value. "CONCATENATE("#first_name#", " - ", 30)" { 'first_name': "Moshe", 'age': 20, 'status': "Done"} Result: "CONCATENATE("Moshe", " - ", 30)"

Provide a set of positive integers (an array of integers). Each integer represent number of nights user request on Airbnb.com. If you are a host, you need to design and implement an algorithm to find out the maximum number a nights you can accommodate. The constrain is that you have to reserve at least one day between each request, so that you have time to clean the room. Example: 1) Input: [1, 2, 3] ===> output: 4, because you will pick 1 and 3 2) input: [5, 1, 2, 6] ===> output: 11, because you will pick 5 and 6 3) input: [5, 1, 2, 6, 20, 2] ===> output: 27, because you will pick 5, 2, 20
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Software Engineer

Interviewed at Airbnb

4★
May 3, 2015

Provide a set of positive integers (an array of integers). Each integer represent number of nights user request on Airbnb.com. If you are a host, you need to design and implement an algorithm to find out the maximum number a nights you can accommodate. The constrain is that you have to reserve at least one day between each request, so that you have time to clean the room. Example: 1) Input: [1, 2, 3] ===> output: 4, because you will pick 1 and 3 2) input: [5, 1, 2, 6] ===> output: 11, because you will pick 5 and 6 3) input: [5, 1, 2, 6, 20, 2] ===> output: 27, because you will pick 5, 2, 20

1. Take an integer input and output the number of 1's in it's binary representation. 2. Implement a mergesort. 3. Explain your level of understanding of data structures (trees, etc.) 4. What makes java different than other languages?
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Applications Developer

Interviewed at JPMorganChase

3.9★
Feb 26, 2016

1. Take an integer input and output the number of 1's in it's binary representation. 2. Implement a mergesort. 3. Explain your level of understanding of data structures (trees, etc.) 4. What makes java different than other languages?

The question was the following. I'm rephrasing the question to make it clear for everyone to understand: - You are going on a one-way flight trip that includes billions of layovers. - You have 1 ticket for each part of your trip (i.e: if your trip is from city A to city C with a layover in city B, then you will have 1 flight ticket from city A to city B, and 1 flight ticket from city B to city C. - Each layover is unique. You are not stopping twice in the same city. - You forgot the original departure city. - You forgot the final destination city. - All the tickets you have are randomly sorted. Question are: - Design an algorithm to reconstruct your trip with minimum complexity. - How would you improve your algorithm. Example: - randomly sorted: New York->London San Francisco-> Hong Kong Paris->New York London->San Francisco - sorted: Paris->New York New York->London London->San Francisco San Francisco-> Hong Kong
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Software Engineer

Interviewed at Google

4.4★
Aug 9, 2009

The question was the following. I'm rephrasing the question to make it clear for everyone to understand: - You are going on a one-way flight trip that includes billions of layovers. - You have 1 ticket for each part of your trip (i.e: if your trip is from city A to city C with a layover in city B, then you will have 1 flight ticket from city A to city B, and 1 flight ticket from city B to city C. - Each layover is unique. You are not stopping twice in the same city. - You forgot the original departure city. - You forgot the final destination city. - All the tickets you have are randomly sorted. Question are: - Design an algorithm to reconstruct your trip with minimum complexity. - How would you improve your algorithm. Example: - randomly sorted: New York->London San Francisco-> Hong Kong Paris->New York London->San Francisco - sorted: Paris->New York New York->London London->San Francisco San Francisco-> Hong Kong

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