Editorial for SAC '22 Code Challenge 3 Junior P2 - Normal Lines

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Author: maxcruickshanks

There are 3 cases that need to be considered:

If the x-coordinates are identical, they are parallel to the y-axis, so output y-axis;

If the y-coordinates are identical, they are parallel to the x-axis, so output x-axis;

If neither condition above is satisfied, output neither since they are not parallel to either axis.

Time Complexity: \mathcal{O}(1)


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