Editorial for UTS Open '18 P2 - ABCs - Olympiads Online Judge

Editorial for UTS Open '18 P2 - ABCs

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Author: PlasmaVortex

Loop through the 3 possible values of $i$ ~i~, and check which ones are valid $(A_{i-1} = B_i)$ ~(A_{i-1} = B_i)~. For each valid $i$ ~i~, add $C_i$ ~C_i~ to a running total if $C_i > 0$ ~C_i > 0~. Then print the total at the end.

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

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