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

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