(WAWAWAWAWAWA) BZOJ 1858: [Scoi2010]序列操作
二次联通门 : BZOJ 1858: [Scoi2010]序列操作
/*
BZOJ 1858: [Scoi2010]序列操作
已经...
没有什么好怕的的了... 16K的代码... 调个MMP啊... */
#include <cstdio> void read (int &now)
{
now = ;
register char word = getchar ();
while (word < '' || word > '')
word = getchar ();
while (word >= '' && word <= '')
{
now = now * + word - '';
word = getchar ();
}
} inline int max (int a, int b)
{
return a > b ? a : b;
} inline int min (int a, int b)
{
return a < b ? a : b;
} inline int swap (int &a, int &b)
{
register int now = a;
a = b;
b = now;
} struct Segment_Tree_Data
{
Segment_Tree_Data *Left, *Right; int Mid;
int key; int l, r; int Nor_Flandre;
bool Rev_Flandre; int Zero_Prefix_, Zero_Suffix_;
int Zero_Series_Count;
int Zero_Count; int One_Prefix_, One_Suffix_;
int One_Series_Count;
int One_Count; Segment_Tree_Data ()
{
Left = Right = NULL;
Nor_Flandre = ;
Rev_Flandre = ;
} inline void Clear_One ()
{
One_Count = ;
One_Prefix_ = One_Suffix_ = ;
One_Series_Count = ;
} inline void Clear_Zero ()
{
Zero_Count = ;
Zero_Prefix_ = Zero_Suffix_ = ;
Zero_Series_Count = ;
} inline void Cover_One ()
{
One_Count = r - l + ;
One_Prefix_ = One_Count;
One_Suffix_ = One_Count;
One_Series_Count = One_Count;
} inline void Cover_Zero ()
{
Zero_Count = r - l + ;
Zero_Prefix_ = Zero_Count;
Zero_Suffix_ = Zero_Count;
Zero_Series_Count = Zero_Count;
} inline void Swap_Zero_and_One ()
{
swap (Zero_Count, One_Count);
swap (Zero_Prefix_, One_Prefix_);
swap (Zero_Suffix_, One_Suffix_);
swap (Zero_Series_Count, One_Series_Count);
}
}; Segment_Tree_Data *Root; int Answer; struct Answer_Type
{
int size;
int _Prefix, _Suffix;
int Count;
int Answer;
}; class Segment_Tree_Type
{
private : inline void Up (Segment_Tree_Data *&now)
{
if (now->l == now->r)
return ;/*
now->Zero_Prefix_ = max (now->Left->Zero_Prefix_, now- >Left->Zero_Count + now->Right->Zero_Prefix_);
now->Zero_Suffix_ = max (now->Right->Zero_Suffix_, now- >Right->Zero_Count + now->Left->Zero_Suffix_);
now->Zero_Series_Count = max (max (now->Left- >Zero_Series_Count, now->Right->Zero_Series_Count), now->Right- >Zero_Prefix_ + now->Left->Zero_Suffix_); now->One_Prefix_ = max (now->Left->One_Prefix_, now->Left- >One_Count + now->Right->One_Prefix_);
now->One_Suffix_ = max (now->Right->One_Suffix_, now- >Right->One_Count + now->Left->One_Suffix_);
now->One_Series_Count = max (max (now->Left- >One_Series_Count, now->Right->One_Series_Count), now->Right- >One_Prefix_ + now->Left->One_Suffix_);
*/
now->One_Prefix_ = now->Left->One_Count == now ->Left->r - now->Left->l + ? now->Left->One_Count : now->Left- >One_Prefix_;
now->One_Suffix_ = now->Right->One_Count == now->Right->r - now->Right->l + ? now->Right->One_Count : now->Right ->One_Suffix_; now->Zero_Prefix_ = now->Left->Zero_Count == now->Left->r - now->Left->l + ? now->Left->Zero_Count : now->Left- >Zero_Prefix_;
now->Zero_Suffix_ = now->Right->Zero_Count == now->Right->r - now->Right->l + ? now->Right->Zero_Count : now- >Right->Zero_Suffix_; now->One_Series_Count = max (max (now->Left- >One_Series_Count, now->Right->One_Series_Count), now->Left- >One_Suffix_ + now->Right->One_Prefix_);
now->Zero_Series_Count = max (max (now->Left- >Zero_Series_Count, now->Right->Zero_Series_Count), now->Left- >Zero_Suffix_ + now->Right->Zero_Prefix_); now->One_Count = now->Left->One_Count + now->Right- >One_Count;
now->Zero_Count = now->Left->Zero_Count + now->Right- >Zero_Count;
return ;
} inline void Down (Segment_Tree_Data *&now)
{
if (now->l == now->r)
return ;
if (now->Nor_Flandre)
{
if (now->Nor_Flandre == )
{/*
now->Left->One_Count = now->Left->r - now->Left->l + 1;
now->Right->One_Count = now->Right->r - now->Right ->l + 1; now->Left->One_Prefix_ = now->Left->One_Count;
now->Left->One_Suffix_ = now->Left->One_Count;
now->Right->One_Prefix_ = now->Right->One_Count;
now->Right->One_Suffix_ = now->Right->One_Count; now->Left->One_Series_Count = now->Left->One_Count;
now->Right->One_Series_Count = now->Right- >One_Count; now->Left->Nor_Flandre = 1;
now->Right->Nor_Flandre = 1;
*/
now->Left->Cover_One ();
now->Right->Cover_One ();
now->Left->Rev_Flandre = false;
now->Right->Rev_Flandre = false;
now->Left->Clear_Zero ();
now->Right->Clear_Zero (); now->Nor_Flandre = ;
}
else if (now->Nor_Flandre == )
{/*
now->Left->Zero_Count = now->Left->r - now->Left->l + 1;
now->Right->Zero_Count = now->Right->r - now- >Right->l + 1; now->Left->Zero_Prefix_ = now->Left->Zero_Count;
now->Left->Zero_Suffix_ = now->Left->Zero_Count;
now->Right->Zero_Prefix_ = now->Right->Zero_Count;
now->Right->Zero_Suffix_ = now->Right->Zero_Count; now->Left->Zero_Series_Count = now->Left- >Zero_Count;
now->Right->Zero_Series_Count = now->Right- >Zero_Count; now->Left->Nor_Flandre = 2;
now->Right->Nor_Flandre = 2;
*/
now->Left->Cover_Zero ();
now->Right->Cover_Zero ();
now->Left->Rev_Flandre = false;
now->Right->Rev_Flandre = false;
now->Left->Clear_One ();
now->Right->Clear_One (); now->Nor_Flandre = ;
}
}
if (now->Rev_Flandre)
{/*
swap (now->Left->One_Count, now->Left->Zero_Count);
swap (now->Left->One_Prefix_, now->Left->Zero_Count);
swap (now->Left->One_Series_Count, now->Left- >Zero_Series_Count);
swap (now->Left->One_Suffix_, now->Left->Zero_Suffix_); swap (now->Right->One_Count, now->Right->Zero_Count);
swap (now->Right->One_Prefix_, now->Right->Zero_Count);
swap (now->Right->One_Series_Count, now->Right- >Zero_Series_Count);
swap (now->Right->One_Suffix_, now->Left- >Zero_Suffix_);
*/
now->Left->Swap_Zero_and_One ();
now->Right->Swap_Zero_and_One ();
now->Left->Rev_Flandre = true;
now->Right->Rev_Flandre = true; now->Rev_Flandre = false;
}
} public : void Build (Segment_Tree_Data *&now, int l, int r)
{
now = new Segment_Tree_Data;
now->l = l;
now->r = r;
if (l == r)
{
read (now->key);
if (now->key)
{
now->One_Count = ;
now->One_Prefix_ = ;
now->One_Suffix_ = ;
now->One_Series_Count = ;
now->Clear_Zero ();
return ;
}
else
{
now->Zero_Count = ;
now->Zero_Prefix_ = ;
now->Zero_Suffix_ = ;
now->Zero_Series_Count = ;
now->Clear_One ();
return ;
}
}
now->Mid = l + r >> ;
Build (now->Left, l, now->Mid);
Build (now->Right, now->Mid + , r);
Up (now);
} void Change_First (Segment_Tree_Data *&now, int l, int r)
{
if (l <= now->l && now->r <= r)
{/*
now->Zero_Count = now->r - now->l + 1;
now->Zero_Prefix_ = now->Zero_Count;
now->Zero_Suffix_ = now->Zero_Count;
now->Zero_Series_Count = now->Zero_Count;
*/
now->Cover_Zero ();
now->Clear_One ();
now->Nor_Flandre = ;
return ;
}
Down (now);
if (l <= now->Mid)
Change_First (now->Left, l, min (now->Mid, r));
if (r > now->Mid)
Change_First (now->Right, max (now->Mid + , l), r);
Up (now);
} void Change_Second (Segment_Tree_Data *&now, int l, int r)
{
if (l <= now->l && now->r <= r)
{
now->Cover_One ();
now->Clear_Zero (); now->Nor_Flandre = ;
return ;
}
Down (now);
if (l <= now->Mid)
Change_Second (now->Left, l, min (now->Mid, r));
if (r > now->Mid)
Change_Second (now->Right, max (now->Mid + , l), r);
Up (now);
} void Change_Third (Segment_Tree_Data *&now, int l, int r)
{
if (l <= now->l && now->r <= r)
{
now->Swap_Zero_and_One ();
now->Rev_Flandre = true;
return ;
}
Down (now);
if (l <= now->Mid)
Change_Third (now->Left, l, min (now->Mid, r));
if (r > now->Mid)
Change_Third (now->Right, max (now->Mid + , l), r);
Up (now);
} int Query_First (Segment_Tree_Data *&now, int l, int r)
{
if (l <= now->l && now->r <= r)
return now->One_Count;
Down (now);
register int res = ;
if (l <= now->Mid)
res += Query_First (now->Left, l, min (now->Mid, r));
if (r > now->Mid)
res += Query_First (now->Right, max (now->Mid + , l), r);
Up (now);
return res;
}
/*
Segment_Tree_Data *Query_Second (Segment_Tree_Data *&now, int l, int r)
{
if (l <= now->l && now->r <= r)
return now;
Down (now);
Up (now);
Segment_Tree_Data *res = new Segment_Tree_Data;
Segment_Tree_Data *now_1 = new Segment_Tree_Data, *now_2 = new Segment_Tree_Data;
bool flag_1 = false, flag_2 = false;
if (l <= now->Mid)
{
flag_1 = true;
now_1 = Query_Second (now->Left, l, min (now->Mid, r));
}
if (r > now->Mid)
{
flag_2 = true;
now_2 = Query_Second (now->Right, max (now->Mid + 1, l), r);
}
if (flag_1 && flag_2)
{
now_1 = Query_Second (now->Left, l, min (now->Mid, r));
now_2 = Query_Second (now->Right, max (now->Mid + 1, l), r);
res.One_Prefix_ = max (now_1.One_Prefix_, now_1.One_Count + now_2.One_Prefix_);
res.One_Suffix_ = max (now_2.One_Suffix_, now_2.One_Count + now_1.One_Suffix_);
res.One_Series_Count = max (max (now_1.One_Series_Count, now_2.One_Series_Count), now_1.One_Suffix_ + now_2.One_Prefix_);
return res; now_1 = Query_Second (now->Left, l, min (now->Mid, r));
now_2 = Query_Second (now->Right, max (now->Mid + 1, l), r);
res->One_Count = now_1->One_Count + now_2->One_Count;
res->One_Prefix_ = max (now_1->One_Prefix_, now_1- >One_Count + now_2->One_Prefix_);
res->One_Suffix_ = max (now_2->One_Suffix_, now_2- >One_Count + now_1->One_Suffix_);
res->One_Series_Count = max (max (now_1- >One_Series_Count, now_2->One_Series_Count), now_1->One_Suffix_ + now_2->One_Prefix_);
Answer = max (Answer, res->One_Series_Count);
Answer = max (Answer, res->One_Prefix_);
Answer = max (Answer, res->One_Suffix_);
return res;
}
if (flag_1)
{
Answer = max (Answer, now_1->One_Series_Count);
Answer = max (Answer, now_1->One_Prefix_);
Answer = max (Answer, now_1->One_Suffix_);
return now_1;
}
if (flag_2)
{
Answer = max (Answer, now_2- >One_Series_Count);
Answer = max (Answer, now_2- >One_Prefix_);
Answer = max (Answer, now_2- >One_Suffix_);
return now_2;
}
}*/ Answer_Type Query_ (Segment_Tree_Data *&now, int l, int r)
{
if (l <= now->l && now->r <= r)
return (Answer_Type)
{
now->r - now->l + ,
now->One_Prefix_,
now->One_Suffix_,
now->One_Count,
now->One_Series_Count
};
Down (now);
Up (now);
Answer_Type now_1, now_2;
register bool flag_1 = false, flag_2 = false;
if (l <= now->Mid)
{
flag_1 = true;
now_1 = Query_ (now->Left, l, min (now ->Mid, r));
}
if (r > now->Mid)
{
flag_2 = true;
now_2 = Query_ (now->Right, max (now- >Mid + , l), r);
}
if (flag_1 && flag_2)
{
Answer_Type res;
res.Count = now_1.Count + now_2.Count;
res._Prefix = now_1.size == now_1.Count ? now_1.Count : now_1._Prefix;
res._Suffix = now_2.size == now_2.Count ? now_2.Count : now_2._Suffix;
res.Answer = max (max (now_1.Answer, now_2.Answer), now_1._Suffix + now_2._Prefix);
return res;
}
return flag_1 ? now_1 : now_2;
}
}; Segment_Tree_Type Tree;
int N, M; int main (int argc, char *argv[])
{
read (N);
read (M);
Root = NULL;
Tree.Build (Root, , N);
int type, x, y;
for (; M--; )
{
read (type);
read (x);
x++;
read (y);
y++;
if (type == )
Tree.Change_First (Root, x, y);
else if (type == )
Tree.Change_Second (Root, x, y);
else if (type == )
Tree.Change_Third (Root, x, y);
else if (type == )
printf ("%d\n", Tree.Query_First (Root, x, y));
else
{
// Answer = -1;
// Tree.Query_Second (Root, x, y);
// printf ("%d\n", Answer);
Answer_Type res = Tree.Query_ (Root, x, y);
printf ("%d\n", max (max (res._Prefix, res._Suffix), res.Answer));
}
}
return ;
}
(WAWAWAWAWAWA) BZOJ 1858: [Scoi2010]序列操作的更多相关文章
- bzoj 1858: [Scoi2010]序列操作
1858: [Scoi2010]序列操作 Time Limit: 10 Sec Memory Limit: 64 MB 线段树,对于每个区间需要分别维护左右和中间的1和0连续个数,并在op=4时特殊 ...
- BZOJ 1858: [Scoi2010]序列操作( 线段树 )
略恶心的线段树...不过只要弄清楚了AC应该不难.... ---------------------------------------------------------------- #inclu ...
- bzoj 1858: [Scoi2010]序列操作【线段树】
合并中间那块的时候没取max--WAWAWA 在线段树上维护一堆东西,分别是len区间长度,sm区间内1的个数,ll0区间从左开始最长连续0,ml0区间中间最长连续0,rl0区间从右开始最长连续0,l ...
- bzoj 1858: [Scoi2010]序列操作 || 洛谷 P2572
记一下:线段树占空间是$2^{ceil(log2(n))+1}$ 这个就是一个线段树区间操作题,各种标记的设置.转移都很明确,只要熟悉这类题应该说是没有什么难度的. 由于对某区间set之后该区间原先待 ...
- 1858: [Scoi2010]序列操作
1858: [Scoi2010]序列操作 Time Limit: 10 Sec Memory Limit: 64 MB Submit: 3397 Solved: 1624 [Submit][Statu ...
- bzoj1858[Scoi2010]序列操作 线段树
1858: [Scoi2010]序列操作 Time Limit: 10 Sec Memory Limit: 64 MBSubmit: 3079 Solved: 1475[Submit][Statu ...
- BZOJ_1858_[Scoi2010]序列操作_线段树
BZOJ_1858_[Scoi2010]序列操作_线段树 Description lxhgww最近收到了一个01序列,序列里面包含了n个数,这些数要么是0,要么是1,现在对于这个序列有五种变换操作和询 ...
- 【题解】Luogu P2572 [SCOI2010]序列操作
原题传送门:P2572 [SCOI2010]序列操作 这题好弱智啊 裸的珂朵莉树 前置芝士:珂朵莉树 窝博客里对珂朵莉树的介绍 没什么好说的自己看看吧 操作1:把区间内所有数推平成0,珂朵莉树基本操作 ...
- P2572 [SCOI2010]序列操作
对自己 & \(RNG\) : 骄兵必败 \(lpl\)加油! P2572 [SCOI2010]序列操作 题目描述 lxhgww最近收到了一个01序列,序列里面包含了n个数,这些数要么是0,要 ...
随机推荐
- Spring依赖配置详解
<properties> <junit.version>4.12</junit.version> <spring.version>4.3.9.RELEA ...
- 立体像对空间前方交会-共线方程求解法（python实现）
一.原理 二.步骤 a.用各自像片的角元素计算出左右像片的旋转矩阵R1和R2. b.有同名像点列出共线方程. c.将方程写为未知数的线性方程形式,计算线性系数. d.写出误差方程,系数矩阵与常数项. ...
- Python-demo(抖音)
# -*- coding:utf-8 -*- from mitmproxy import ctx import json import requests import time import os p ...
- Django Rest framework实现流程
目录 一 什么是restful架构 二 Django REST framework简介 三 Django REST framework原理 四 Django REST framework源码流程 五 ...
- dstat 监控工具
dstat 监控工具 Linux 自带的监控工具.界面相当友好,可以替代其他的监控工具. 安装 yum install -y dstat 命令使用 dstat -h # 帮助 dstat -tpcdr ...
- 编译安装的httpd实现服务脚本，通过service和chkconfig进行管理
把编译安装的httpd 实现服务脚本,通过service和chkconfig 进行管理 1 编译安装httpd 把httpd编译安装在/app/httpd/目录下. 2 在/etc/rc.d/init ...
- Android笔记（十九） Android中的Fragment
通常我们使用Activity来展示界面,但是在手机上界面可能显示的很好看,但在平板上,因为平板的屏幕非常大,手机的界面放在平板上可能会出现控件被拉长.控件之间间距变大等问题.为了更好的体验效果,在Ac ...
- 算法笔试过程中的几个输入输出python语句
title: python在线笔试学习笔记 localimage: image1 urlname: writenexam categories: summary tags: [writen, exam ...
- 第七周作业：powerdesigner使用小结
powerdesigner使用小结 这款软件使得开发人员为了方便进行数据库的建立以及逻辑关系的实现,而不用自己去“手写”代码,代码在数据库建模完成后可以直接的生成. 如果你电脑上安装了这款软件的话可以 ...
- bloomberg bulkfile【一】 文件的分类
文章导航 bloomberg bulkfile [一] 文件的分类 bloomberg bulkfile [二] 文件解析 bloomberg bulkfile [三] 在oracle的存储 订 ...