Editorial for Max's Anger Contest Series 2 P1 - Directed Anger

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Author: maxcruickshanks

Map N to 0, E to 1, S to 2, and W to 3.

Now, find the number of the original direction, D.

Subtract the number of left turns, L, and add the number of right turns, R, to D.

Modulo D by 4 and output the corresponding mapping from above.

Time Complexity: \mathcal{O}(1)


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