05 2019 档案
摘要:DSM(Data Structure Master) once learned about tree when he was preparing for NOIP(National Olympiad in Informatics in Provinces) in Senior High School
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摘要:推荐博客:https://www.cnblogs.com/SYCstudio/p/7260613.html#4246029
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摘要:262144K Alice has a magic array. She suggests that the value of a interval is equal to the sum of the values in the interval, multiplied by the smalle
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