Introduction
It is another 10:00 pm mock interview. I met a peer and then I observed how quickly the peer came out from the Newton method, and in less than five minutes, he came out his own style of binary search algorithm and solved the problem.
The peer told me that he learns the programming by himself.
Code review
Here is JavaScript code.
The peer wrote a few lines of console statement, and then he just quickly removed them once the code passed all test cases. Just unbelievable the peer can learn the binary search in light speed.
The code is not perfect, but the peer showed me how good he can learn and how fast he can learn to write the algorithm and also solve the problem.
Since it only takes a few minutes for the peer to learn, I called it light speed.
Follow up
Feb. 21, 2019
The interviewee joined Google in July 2019.
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