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

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

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Author: maxcruickshanks

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

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

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

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

Time Complexity: $\mathcal{O}(1)$ $O (1)$

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