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given a 3*3 matrix filling by unique numbers from 1 to 9. You can only switch 9 with 9's up/down/left/right neighbours. Each switch is counted as a step. Question: what's the minimum number of steps to reach the state that the matrix is like 1 2 3 4 5 6 7 8 9
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Backend Software Engineer

Interviewed at Addepar

3.9★
Sep 28, 2016

given a 3*3 matrix filling by unique numbers from 1 to 9. You can only switch 9 with 9's up/down/left/right neighbours. Each switch is counted as a step. Question: what's the minimum number of steps to reach the state that the matrix is like 1 2 3 4 5 6 7 8 9

They first asked the 1min introduction. Then, what is the most difficult project so far? I was asked two coding questions. The first one is to return the common courses of two students. The second question is from leetcode 210.
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Intern Backend Developer

Interviewed at Databricks

4★
Feb 25, 2020

They first asked the 1min introduction. Then, what is the most difficult project so far? I was asked two coding questions. The first one is to return the common courses of two students. The second question is from leetcode 210.

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