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jump grid 2
topic description
Xiao Ming and his friends are playing the grid jumping game. There is a circle composed of n consecutive grids, and each grid has a different score. The child can choose to jump from any grid, but he cannot jump consecutive grids, jump back, and cannot exceed one circle;
Given an array of non-negative integers representing the scores for each cell, compute the highest possible score.
enter description
Given a number example, the first grid and the last grid are connected end to end, such as: 2 3 2
output description
Output the highest score that can be obtained, such as: