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http://acm.csu.edu.cn:20080/csuoj/problemset/problem?pid=2281 Description An arithmetic progression is a sequence of numbers a1, a2, ..., ak where the 阅读全文
posted @ 2019-03-27 22:39
MekakuCityActor
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摘要:
JAVAMAN is visiting Dream City and he sees a yard of gold coin trees. There are n trees in the yard. Let's call them tree 1, tree 2 ...and tree n. At 阅读全文
posted @ 2019-03-27 14:41
MekakuCityActor
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