Play with Roses

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Chef is in love. But he is not sure whether his partner is Happy or not. So like a typical Bollywood movie Chef goes to garden which contains many roses. Chef picks in his hand one or several roses and tears of petals one by one. After each petal he pronounces alternatively "Happy" and "Sad". Chef wants to pick up rose(s) with maximum possible total number of petals so that result would still be

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solution.cppC++17

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