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Given a string that contains {, }, (, ), [, ] similar to a programming language how would you implement a function/method that checks whether its valid/balanced? "{() ()}" => balanced "{ ( [ ] ) }" => balanced - the characters can be nested "{ ( }" => invalid "{ ) ( }" => invalid
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Google Developer Programs Engineer Interview Questions & Reviews

Interviewed at Google

4.4★
Dec 31, 2013

Given a string that contains {, }, (, ), [, ] similar to a programming language how would you implement a function/method that checks whether its valid/balanced? "{() ()}" => balanced "{ ( [ ] ) }" => balanced - the characters can be nested "{ ( }" => invalid "{ ) ( }" => invalid

Second question was not really a question but a very healthy session of pair programming where I was speaking and a senior developer was coding. He chose JAVA and we were creating a list data-structure (with add, count, delete) operations. The catch was that we were going to do it TDD style. So I guided him on what kind of test we can write and how to pass that test and so on. We kept doing it and in 45 minutes we had a very well tested working list data structure.
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Software Engineer (Web Developer)

Interviewed at Yelp

3.2★
Feb 23, 2015

Second question was not really a question but a very healthy session of pair programming where I was speaking and a senior developer was coding. He chose JAVA and we were creating a list data-structure (with add, count, delete) operations. The catch was that we were going to do it TDD style. So I guided him on what kind of test we can write and how to pass that test and so on. We kept doing it and in 45 minutes we had a very well tested working list data structure.

An enumerator is a class with getNextObject method. It encapsulates the container. Write an enumerator. Next, write a new enumerator called chained-enumerator which is initialized by two other enumerators. Finally, how would you make it work with N enumerators. I had to write the logic for getNextObject for the most part (and any other internal state I wanted to manage).
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Software Engineer (Web Developer)

Interviewed at Yelp

3.2★
Feb 23, 2015

An enumerator is a class with getNextObject method. It encapsulates the container. Write an enumerator. Next, write a new enumerator called chained-enumerator which is initialized by two other enumerators. Finally, how would you make it work with N enumerators. I had to write the logic for getNextObject for the most part (and any other internal state I wanted to manage).

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