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2021年2月5日
2015-ICPC-Shanghai K - Kingdom of Black and White
摘要： 点我传送 题面： In the Kingdom of Black and White (KBW), there are two kinds of frogs: black frog and white frog. Now \(N\) frogs are standing in a line, som 阅读全文
posted @ 2021-02-05 14:41 Frank_Ou 阅读(73) 评论(0) 推荐(0) 编辑