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2021年11月20日
2021CCPC广州 C. Necklace（二分/贪心/好题/详细题解）
摘要： Bob has given Alice a necklace as her birthday gift. That necklace has 𝑁N crystals, 𝑀M of which catches her fancy. Formally, crystals with labels of 阅读全文
posted @ 2021-11-20 21:34 脂环 阅读(897) 评论(2) 推荐(1) 编辑