2019牛客国庆集训派对day6 H-Super Fast Fourier Transform(思维)

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2019牛客国庆集训派对 E-Partial Sum (绝对值的特殊性)

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给定长为n的数组, 找到m组(L, R), 使得|sum(L,R)| - C的和最大, 其中C为常数(输入中给出), 每个(L, R)只出现一次。

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Hello World

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