2023.11.14 闲话

晚上吃晚饭回来,看到眼前光影节。

等到天气暑热郁郁枯寂,都仿照媒拾成功,我说不出,仿照怜悯的行为,也同逍遥快乐。

早就不带初心。这就是“初心”是什么?

当我在水上社,我的朋友说我变了,然而,人每天都在变化,应该有所准备,拿着这足以找到的。

以初心不一定容易。改变他的心为“初心”。

然而现在的魏天老师不改,这有当初的志向,我先为大家后面了。

然而,虽然有变化,一定要回头光辉,重感受所遇。

也许是化不可脱离,每相转折,尚能回忆。

不转,在坡吗?

Owo Song

{intro}
This song is for everybody who
Loves somebody (my mom doesn't love me)
Yeah, that works (or my father)

{chorus}
Owo what is this?
I think i found love within
Deep inside your heart and soul
Owo (ay, yuh) (what does owo mean? again, i have no idea)
Owo what is this?
I think i found love within3333
Deep inside your heart and soul
Owo, yeah, yeah (owo, baby) (seriously! what does owo mean?!)
Owo what is this?
I think i found love within
Deep inside your heart and soul
Owo, oh (owo, baby) (my mom just grounded me from soccer practice please help)

{verse 1}
Tell me, do you want me, baby? (yeah, yeah)
Tell me, do i drive you crazy? (yeah, yeah)
Tell me, do i make you go 'owo'? (owo, yeah, girl) (somebody please help, my mom won't give me back my x-box)
Tell me, do you want me, baby? (owo, owo, owo, yeah, yeah)
Tell me, do i drive you crazy? (owo, owo, owo)
Tell me, do i make you go 'owo'? (yeah) (yeah, yeah)

{chorus}
(my mom has yet to give me back my)
Owo what is this? (x-box360, i am going to)
I think i found love within (call the cops on her or-)
Deep inside your heart and soul (*laughs*)
Owo (yeah, ay)
Owo what is this?
I think i found love within
Deep inside your heart and soul
Owo (uwo, girl) (i am abused at home, oh)
Owo what is this?
I think i found love within
Deep inside your heart and soul
Owo (uwo, darling)

{outro}
(owo, o-owo!
I have burn marks on me from my fathers cigarettes *giggles*
Owo! *laughs*)


问题:

给一个长度为 n 的整数序列,q 次操作每次区间 checkmax,最后输出整个序列 .

n105q2×107,值域 [0,232] . 数据随机 .

模拟赛的题,做法比较逆天,记录一下:

Solution 1   二区间合并,O(nlogn+q) .

Solution 2   每次把区间拆成两个长为 2k 区间的并打标记最后 pushdown,Θ(nlogn+q) .

Solution 3   离线下来排序就变成区间覆盖,时间倒流并查集维护即可,时间复杂度 Θ(sort(q)+qα(n)) .

Solution 4   分块,B 是块长 . 对于整块的记 tl,r 表示块 lr 的标记,最后 pushdown . 对于散块前后缀直接打标记,否则暴力扫 . 因为数据随机所以只有 Bn 的概率两端点在同一块需要暴力扫,所以这部分的期望时间复杂度是 O(B2) 的 . 取 B=n 问题被期望 O(n+q) 解决 .

仔细思考一下其实只要运算有交换律结合律 Solution 4 就都能跑,哈哈 .

upd. 由乃救爷爷 .

感谢 APJifengc 和一些人 .

一个有趣的事实是,原题的数据生成器质量不高所以直接把 q2×105 取 min 即可通过 .

posted @   yspm  阅读(156)  评论(4编辑  收藏  举报
相关博文:
阅读排行:
· 地球OL攻略 —— 某应届生求职总结
· 周边上新:园子的第一款马克杯温暖上架
· Open-Sora 2.0 重磅开源!
· 提示词工程——AI应用必不可少的技术
· .NET周刊【3月第1期 2025-03-02】
😅​
点击右上角即可分享
微信分享提示