Bzoj2353
Web摘要: Trial Round: Rectangles \[ans=\sum_{1\leq i\leq j\leq n}[ij\leq n]=\frac{\lfloor\sqrt{n}\rfloor+\sum_{1\leq i,j\leq n}[ij\leq n]}{2}=\frac{\lfloor\sqr ... Web摘要: A. 公交线路 检查坐对方向和坐反方向两种情况对应的报站序列是否符合输入,如果都符合那就是''Unsure'',否则可以确定有没有坐反。
Bzoj2353
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WebJan 5, 2024 · bzoj2353 : 矩形压缩 如果一个矩形$A$包含另一个矩形$B$,那么选矩形$A$显然不优。 把坐标离散化,给每个矩形一个随机的unsigned long long权值,并把对应范围 …
Web《算法》笔记 17 - 数据压缩. 读写二进制数据. 基因组数据的压缩. 游程编码. 位图. 霍夫曼压缩. 前缀码和单词查找树. 构造前缀码的单词查找树 Web与本文相关文章. OpenCV 颜色转换和皮肤检测; 2024.09.16 课堂总结; swift - 16 进制颜色扩展 (1. 支持# 2. 支持不带# , 3 支持带 0X)
Web2024 Multi-University Training Contest 6. 摘要: A. Salty Fish 假设要偷走所有的苹果,那么现在需要放弃一些苹果,并且黑掉一些监控相机以保证能偷走没有放弃的苹果,我们需要最小化放弃的苹果的收益之和加上黑掉相机支付的代价的总和。. 考虑最小割建图: 源点 S 向 ... Web摘要: A. Salty Fish 假设要偷走所有的苹果,那么现在需要放弃一些苹果,并且黑掉一些监控相机以保证能偷走没有放弃的苹果,我们需要最小化放弃的苹果的收益之和加上黑掉相机支付的代价的总和。. 考虑最小割建图: 源点 S 向每个监控相机连边,割掉这条边 ...
Webbzoj4373. Given a sequence that allows point modification, ask whether the segment l to r constitutes an arithmetic sequence with tolerance k. The necessary and sufficient conditions for forming a tolerance k arithmetic progression: ② The gcd after the difference is a multiple of k (need to judge k==0) The first two can be maintained with a ...
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