Graduate Software Developer Interview Questions

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The input is an NxN array of integers representing depth level (higher value = higher depth). With an input of the form string[N], return an array of the same format with all 'cavities' replaced with an 'X' character, where a cavity is a local minima - all surrounding values (non-diagonal) must be a lower depth.
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Graduate Software Developer

Interviewed at Smarkets

3.5
Nov 6, 2017

The input is an NxN array of integers representing depth level (higher value = higher depth). With an input of the form string[N], return an array of the same format with all 'cavities' replaced with an 'X' character, where a cavity is a local minima - all surrounding values (non-diagonal) must be a lower depth.

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