Replies: 8 comments
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析点的性质那里是不是把不属于符号打错了 |
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@xyjg 是的。。。感谢指出 |
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连续段的性质那里 |
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不是值域的上下界 是区间的左右端点的下标 注释里对 M 数组的解释很含糊。这个数组存储的是节点的最右儿子的下标区间的左端点,用来查询第一种操作(当前节点作为儿子并入栈顶节点)的合法性。
虽然叉不掉(似乎),但是为了逻辑清晰,我觉得最好改成
这个 RMQ 的必要性在哪里啊 贴一个代码供参考 CF526F |
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连续段的运算需要保证 A,B 互不包含 |
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叶子节点定义成析点是不是更好啊?毕竟如果是合点那么就有可能在构造中存在儿子节点。 |
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性质部分是包含不是属于罢,没有定义连续段的属于 |
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https://oi-wiki.org/ds/divide-combine/
OI Wiki 是一个编程竞赛知识整合站点,提供有趣又实用的编程竞赛知识以及其他有帮助的内容,帮助广大编程竞赛爱好者更快更深入地学习编程竞赛
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