201
edits
Difference between revisions of "BreakFast:The 2020 ICPC Asia Macau Regional Contest"
BreakFast:The 2020 ICPC Asia Macau Regional Contest (view source)
Revision as of 09:52, 14 June 2021
, 09:52, 14 June 2021add lzw comment
Lanzongwei (talk | contribs) |
(add lzw comment) |
||
| Line 1: | Line 1: | ||
__TOC__ | __TOC__ | ||
== Replay == | |||
先过了L傻逼题，欣姐推了个<math>\frac{n!n!}{n^n}</math> 暴力用py艹过去了，py写了一万年，我是不是该看看py小数和分数文档了 | |||
后来想到是不是一直<math> ans / i / i * n</math> c++ 也能过啊 | |||
然后D傻逼模拟题，我傻逼写错了几个地方，看错了几个题意，，，然后就过了 | |||
接着社会主义分治fft A题，hr推了半天，经过这是卷积题的强烈暗示 | |||
给了个<math>\sum_i^n(1+a_ix)</math>, 取系数再分别乘一个<math>i! (n - 1)!</math>, 然后就过了 | |||
接着F题sb构造，我找出了偶数的构造方案，hr知道奇数的构造方案却整场不说，最后问急了才哔哔出来 | |||
md， 这也能演我是没想到🎭 | |||
然后也没时间写完了，然后人就没了，，， | |||
== Problem A == | == Problem A == | ||
solved by | solved by lzw & lhr. 02:47(+) | ||
== lzw总结 == | |||
感觉柿子推得是不是有点慢啊，lzw感觉一开始推柿子完全不在线啊 | |||
感觉写法上还得多想想，节省的时间比直接上要多多了 | |||
希望hr别在👁我了，呜呜呜 | |||