Editorial for MEC '16 P1 - Bat-Doctor
Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.
Submitting an official solution before solving the problem yourself is a bannable offence.
This problem is just simple math. Store all the points where there is an X from left to right, then find the atan of the slope between two consecutive points and add 90 degrees to it for the final answer.
Time Complexity: where
is the rows and
is the columns.
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