Editorial for CTU Open Contest 2017 - Shooting Gallery - Olympiads Online Judge

Editorial for CTU Open Contest 2017 - Shooting Gallery

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Dynamic Programming
Keep begin and end: Take maximum of $[\text{begin}+1, \text{end}]$ ~[\text{begin}+1, \text{end}]~ and $[\text{begin}, \text{end}-1]$ ~[\text{begin}, \text{end}-1]~ (if not equal)
$\mathcal O(N^2)$ ~\mathcal O(N^2)~

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