Software Development Engineer Interview Questions

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How would you convert a row number on Excel to a label? Rows are labeled alphabetically with letters added on once the alphabet has been fully used. (Ex. row # 5 is labeled E, row # 27 is labeled AA, row # 28 is AB, row # 53 is BA and so forth) What would the row label be for a large number, such as 1500?
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Software Development Engineer

Interviewed at Microsoft

4
Dec 15, 2015

How would you convert a row number on Excel to a label? Rows are labeled alphabetically with letters added on once the alphabet has been fully used. (Ex. row # 5 is labeled E, row # 27 is labeled AA, row # 28 is AB, row # 53 is BA and so forth) What would the row label be for a large number, such as 1500?

The interviewer had the code from the previous interviewee still on the white board in the room. He asked me to identify what the code did (printed the contents of a binary tree through a BFS using a queue). Then asked me to identify the bugs with the code and suggest how to fix it (null-pointer exceptions when printing out the values from the queue and checking for nulls before adding a value to the queue).
Mar 9, 2016

The interviewer had the code from the previous interviewee still on the white board in the room. He asked me to identify what the code did (printed the contents of a binary tree through a BFS using a queue). Then asked me to identify the bugs with the code and suggest how to fix it (null-pointer exceptions when printing out the values from the queue and checking for nulls before adding a value to the queue).

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