FOI 冬令营 Day6
别问Day5到底去哪里了，咕咕咕
T1、堆（heap）
传送门
Code
#include<bits/stdc++.h>
#define ll long long
#define max(a,b) ((a)>(b)?(a):(b))
#define min(a,b) ((a)<(b)?(a):(b))
inline int read()
{
int x=0,f=1;char ch=getchar();
while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
while(ch>='0'&&ch<='9'){x=(x<<3)+(x<<1)+ch-'0';ch=getchar();}
return x*f;
}
#define mod 1000000007
#define MN 10000005
int k=1;
int f[MN],fac[MN],inv[MN];
ll C(int m,int n)
{
return 1ll*fac[m]*inv[n]%mod*inv[m-n]%mod;
}
ll calc(int N)
{
if(N==1) return f[1]=1;
if(N==2) return f[2]=1;
for(;k<=N+1;k<<=1);
if((k>>1)-1+(k>>2)-1<=N-1) return f[N]=1ll*f[(k>>1)-1]*f[N-(k>>1)]%mod*C(N-1,(k>>1)-1)%mod;
return f[N]=1ll*f[(k>>2)-1]*f[N-(k>>2)]%mod*C(N-1,(k>>2)-1)%mod;
}
inline void CALC()
{
register int i;
for(i=fac[0]=1;i<=MN-5;++i) fac[i]=1ll*fac[i-1]*i%mod;
for(inv[1]=1,i=2;i<=MN-5;++i) inv[i]=1ll*(mod-mod/i)*inv[mod%i]%mod;
for(i=2;i<=MN-5;++i) inv[i]=1ll*inv[i-1]*inv[i]%mod;
for(i=1;i<=MN-5;++i) calc(i);
}
namespace solve1
{
inline void Main(int n)
{
printf("%d\n",f[n]);
}
}
//A[i][1]=f[A[i][0]]
int A[6][2]={{16777215,402893522},{33554431,402161199},{67108863,202306422},{134217727,343125868},{268435455,690746662},{536870911,837287629}};
//FAC[i]=fac[(i+1)*(1e6)]
int FAC[1000]={641102369,578095319,5832229,259081142,974067448,316220877,690120224,251368199,980250487,682498929,134623568,95936601,933097914,167332441,598816162,336060741,248744620,626497524,288843364,491101308,245341950,565768255,246899319,968999,586350670,638587686,881746146,19426633,850500036,76479948,268124147,842267748,886294336,485348706,463847391,544075857,898187927,798967520,82926604,723816384,156530778,721996174,299085602,323604647,172827403,398699886,530389102,294587621,813805606,67347853,497478507,196447201,722054885,228338256,407719831,762479457,746536789,811667359,778773518,27368307,438371670,59469516,5974669,766196482,606322308,86609485,889750731,340941507,371263376,625544428,788878910,808412394,996952918,585237443,1669644,361786913,480748381,595143852,837229828,199888908,526807168,579691190,145404005,459188207,534491822,439729802,840398449,899297830,235861787,888050723,656116726,736550105,440902696,85990869,884343068,56305184,973478770,168891766,804805577,927880474,876297919,934814019,676405347,567277637,112249297,44930135,39417871,47401357,108819476,281863274,60168088,692636218,432775082,14235602,770511792,400295761,697066277,421835306,220108638,661224977,261799937,168203998,802214249,544064410,935080803,583967898,211768084,751231582,972424306,623534362,335160196,243276029,554749550,60050552,797848181,395891998,172428290,159554990,887420150,970055531,250388809,487998999,856259313,82104855,232253360,513365505,244109365,1559745,695345956,261384175,849009131,323214113,747664143,444090941,659224434,80729842,570033864,664989237,827348878,195888993,576798521,457882808,731551699,212938473,509096183,827544702,678320208,677711203,289752035,66404266,555972231,195290384,97136305,349551356,785113347,83489485,66247239,52167191,307390891,547665832,143066173,350016754,917404120,296269301,996122673,23015220,602139210,748566338,187348575,109838563,574053420,105574531,304173654,542432219,34538816,325636655,437843114,630621321,26853683,933245637,616368450,238971581,511371690,557301633,911398531,848952161,958992544,925152039,914456118,724691727,636817583,238087006,946237212,910291942,114985663,492237273,450387329,834860913,763017204,368925948,475812562,740594930,45060610,806047532,464456846,172115341,75307702,116261993,562519302,268838846,173784895,243624360,61570384,481661251,938269070,95182730,91068149,115435332,495022305,136026497,506496856,710729672,113570024,366384665,564758715,270239666,277118392,79874094,702807165,112390913,730341625,103056890,677948390,339464594,167240465,108312174,839079953,479334442,271788964,135498044,277717575,591048681,811637561,353339603,889410460,839849206,192345193,736265527,316439118,217544623,788132977,618898635,183011467,380858207,996097969,898554793,335353644,54062950,611251733,419363534,965429853,160398980,151319402,990918946,607730875,450718279,173539388,648991369,970937898,500780548,780122909,39052406,276894233,460373282,651081062,461415770,358700839,643638805,560006119,668123525,686692315,673464765,957633609,199866123,563432246,841799766,385330357,504962686,954061253,128487469,685707545,299172297,717975101,577786541,318951960,773206631,306832604,204355779,573592106,30977140,450398100,363172638,258379324,472935553,93940075,587220627,776264326,793270300,291733496,522049725,579995261,335416359,142946099,472012302,559947225,332139472,499377092,464599136,164752359,309058615,86117128,580204973,563781682,954840109,624577416,895609896,888287558,836813268,926036911,386027524,184419613,724205533,403351886,715247054,716986954,830567832,383388563,68409439,6734065,189239124,68322490,943653305,405755338,811056092,179518046,825132993,343807435,985084650,868553027,148528617,160684257,882148737,591915968,701445829,529726489,302177126,974886682,241107368,798830099,940567523,11633075,325334066,346091869,115312728,473718967,218129285,878471898,180002392,699739374,917084264,856859395,435327356,808651347,421623838,105419548,59883031,322487421,79716267,715317963,429277690,398078032,316486674,384843585,940338439,937409008,940524812,947549662,833550543,593524514,996164327,987314628,697611981,636177449,274192146,418537348,925347821,952831975,893732627,1277567,358655417,141866945,581830879,987597705,347046911,775305697,125354499,951540811,247662371,343043237,568392357,997474832,209244402,380480118,149586983,392838702,309134554,990779998,263053337,325362513,780072518,551028176,990826116,989944961,155569943,596737944,711553356,268844715,451373308,379404150,462639908,961812918,654611901,382776490,41815820,843321396,675258797,845583555,934281721,741114145,275105629,666247477,325912072,526131620,252551589,432030917,554917439,818036959,754363835,795190182,909210595,278704903,719566487,628514947,424989675,321685608,50590510,832069712,198768464,702004730,99199382,707469729,747407118,302020341,497196934,5003231,726997875,382617671,296229203,183888367,703397904,552133875,732868367,350095207,26031303,863250534,216665960,561745549,352946234,784139777,733333339,503105966,459878625,803187381,16634739,180898306,68718097,985594252,404206040,749724532,97830135,611751357,31131935,662741752,864326453,864869025,167831173,559214642,718498895,91352335,608823837,473379392,385388084,152267158,681756977,46819124,313132653,56547945,442795120,796616594,256141983,152028387,636578562,385377759,553033642,491415383,919273670,996049638,326686486,160150665,141827977,540818053,693305776,593938674,186576440,688809790,565456578,749296077,519397500,551096742,696628828,775025061,370732451,164246193,915265013,457469634,923043932,912368644,777901604,464118005,637939935,956856710,490676632,453019482,462528877,502297454,798895521,100498586,699767918,849974789,811575797,438952959,606870929,907720182,179111720,48053248,508038818,811944661,752550134,401382061,848924691,764368449,34629406,529840945,435904287,26011548,208184231,446477394,206330671,366033520,131772368,185646898,648711554,472759660,523696723,271198437,25058942,859369491,817928963,330711333,724464507,437605233,701453022,626663115,281230685,510650790,596949867,295726547,303076380,465070856,272814771,538771609,48824684,951279549,939889684,564188856,48527183,201307702,484458461,861754542,326159309,181594759,668422905,286273596,965656187,44135644,359960756,936229527,407934361,267193060,456152084,459116722,124804049,262322489,920251227,816929577,483924582,151834896,167087470,490222511,903466878,361583925,368114731,339383292,388728584,218107212,249153339,909458706,322908524,202649964,92255682,573074791,15570863,94331513,744158074,196345098,334326205,9416035,98349682,882121662,769795511,231988936,888146074,137603545,582627184,407518072,919419361,909433461,986708498,310317874,373745190,263645931,256853930,876379959,702823274,147050765,308186532,175504139,180350107,797736554,606241871,384547635,273712630,586444655,682189174,666493603,946867127,819114541,502371023,261970285,825871994,126925175,701506133,314738056,341779962,561011609,815463367,46765164,49187570,188054995,957939114,64814326,933376898,329837066,338121343,765215899,869630152,978119194,632627667,975266085,435887178,282092463,129621197,758245605,827722926,201339230,918513230,322096036,547838438,985546115,852304035,593090119,689189630,555842733,567033437,469928208,212842957,117842065,404149413,155133422,663307737,208761293,206282795,717946122,488906585,414236650,280700600,962670136,534279149,214569244,375297772,811053196,922377372,289594327,219932130,211487466,701050258,398782410,863002719,27236531,217598709,375472836,810551911,178598958,247844667,676526196,812283640,863066876,857241854,113917835,624148346,726089763,564827277,826300950,478982047,439411911,454039189,633292726,48562889,802100365,671734977,945204804,508831870,398781902,897162044,644050694,892168027,828883117,277714559,713448377,624500515,590098114,808691930,514359662,895205045,715264908,628829100,484492064,919717789,513196123,748510389,403652653,574455974,77123823,172096141,819801784,581418893,15655126,15391652,875641535,203191898,264582598,880691101,907800444,986598821,340030191,264688936,369832433,785804644,842065079,423951674,663560047,696623384,496709826,161960209,331910086,541120825,951524114,841656666,162683802,629786193,190395535,269571439,832671304,76770272,341080135,421943723,494210290,751040886,317076664,672850561,72482816,493689107,135625240,100228913,684748812,639655136,906233141,929893103,277813439,814362881,562608724,406024012,885537778,10065330,60625018,983737173,60517502,551060742,804930491,823845496,727416538,946421040,678171399,842203531,175638827,894247956,538609927,885362182,946464959,116667533,749816133,241427979,871117927,281804989,163928347,563796647,640266394,774625892,59342705,256473217,674115061,918860977,322633051,753513874,393556719,304644842,767372800,161362528,754787150,627655552,677395736,799289297,846650652,816701166,687265514,787113234,358757251,701220427,607715125,245795606,600624983,10475577,728620948,759404319,36292292,491466901,22556579,114495791,647630109,586445753,482254337,718623833,763514207,66547751,953634340,351472920,308474522,494166907,634359666,172114298,865440961,364380585,921648059,965683742,260466949,117483873,962540888,237120480,620531822,193781724,213092254,107141741,602742426,793307102,756154604,236455213,362928234,14162538,753042874,778983779,25977209,49389215,698308420,859637374,49031023,713258160,737331920,923333660,804861409,83868974,682873215,217298111,883278906,176966527,954913,105359006,390019735,10430738,706334445,315103615,567473423,708233401,48160594,946149627,346966053,281329488,462880311,31503476,185438078,965785236,992656683,916291845,881482632,899946391,321900901,512634493,303338827,121000338,967284733,492741665,152233223,165393390,680128316,917041303,532702135,741626808,496442755,536841269,131384366,377329025,301196854,859917803,676511002,373451745,847645126,823495900,576368335,73146164,954958912,847549272,241289571,646654592,216046746,205951465,3258987,780882948,822439091,598245292,869544707,698611116};
int INV[6][2]={{16777215,46747475},{33554431,420548460},{67108863,409045868},{134217727,929575843},{268435455,327157363},{536870911,462097864}};
namespace solve2
{
inline int Inv(int x)
{
int m=mod-2,r=1;
for(;m;m>>=1,x=1ll*x*x%mod)
if(m&1) r=1ll*r*x%mod;
return r;
}
inline int Inv2(int n)
{
if(n<=1e7) return inv[n];
for(int i=0;i<6;++i) if(n==INV[i][0]) return INV[i][1];
puts("error");
}
inline int Fac(int m)
{
if(m<=1e7) return fac[m];
int di=m/(1000000);int ret=FAC[di-1];
for(int i=di*1000000+1;i<=m;++i) ret=1ll*ret*i%mod;
return ret;
}
int III(int x)
{
if(x<=1e7) return inv[x];
return Inv(Fac(x));
}
inline int Ci(int m,int n)
{
return 1ll*Fac(m)*III(m-n)%mod*Inv2(n)%mod;
}
inline int calc3(int N)
{
if(N<=1e7) return f[N];
//printf("-----calc3:%d\n",N);
for(int i=0;i<6;++i) if(N==A[i][0]) return A[i][1];
puts("error");
}
inline int sqr(int x){return 1ll*x*x%mod;}
inline int calc2(int N)
{
//printf("calc2:%d\n",N);
if(N<=1e7) return f[N];
int kk;
for(kk=1;kk<=N+1;kk<<=1);
if((kk>>1)-1+(kk>>2)-1<=N-1) return 1ll*calc3((kk>>1)-1)*calc2(N-(kk>>1))%mod*Ci(N-1,(kk>>1)-1)%mod;
return 1ll*calc3((kk>>2)-1)*calc2(N-(kk>>2))%mod*Ci(N-1,(kk>>2)-1)%mod;
// return 1ll*sqr(calc2((kk>>2)-1))*Ci(N-1,(kk>>2)-1)%mod;
}
inline void Main(int n)
{
printf("%d",calc2(n));
}
}
int main()
{
freopen("heap.in","r",stdin);
freopen("heap.out","w",stdout);
CALC();
// for(int i=0;i<10;++i) {printf("{%d,",A[i][0]),solve2::Main(A[i][0]),printf("},");}
int n=read();
if(n<=MN-5) solve1::Main(n);
else solve2::Main(n);
return 0;
}
T2、密文（secret）
传送门
Code
#include<bits/stdc++.h>
#define ll long long
using namespace std;
inline int read()
{
int x=0,f=1;char ch=getchar();
while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
while(ch>='0'&&ch<='9'){x=(x<<3)+(x<<1)+ch-'0';ch=getchar();}
return x*f;
}
const int MN=100005,inf=10000000000;
int n,a[MN],c[MN*35][5],root,tot;
ll ret=0;
std::vector<int> G[MN*35];
std::set<int> num;
inline void Ins(int &x,int A,int d)
{
if(!x) x=++tot;
G[x].push_back(A);
if(d<0) return;
Ins(c[x][(A>>d)&1],A,d-1);
}
inline int FIND(int x,int A,int d)
{
if(d<0) return 0;if(x==0) return 0;
if(c[x][(A>>d)&1]) return FIND(c[x][(A>>d)&1],A,d-1);
else return FIND(c[x][((A>>d)&1)^1],A,d-1)+(1<<d);
}
inline void solve(int x,int d)
{
if(d<0) return;
if(c[x][0]) solve(c[x][0],d-1);
if(c[x][1]) solve(c[x][1],d-1);
if(c[x][0]&&c[x][1])
{
int ans=inf,L=c[x][0],R=c[x][1];ret+=1<<d;
for(register int i=G[L].size()-1;~i;--i)
ans=min(ans,FIND(R,G[L][i],d-1));
ret+=ans;
}
}
int main()
{
freopen("secret.in","r",stdin);
freopen("secret.out","w",stdout);
n=read();register int i;
for(i=1;i<=n;++i) a[i]=read()^a[i-1];
for(i=0;i<=n;++i) if(num.count(a[i])==0) num.insert(a[i]),Ins(root,a[i],29);
solve(root,29);return 0*printf("%lld\n",ret);
}
T3、树（tree）
传送门
Code
咕咕咕
Blog来自PaperCloud，未经允许，请勿转载，TKS！
FOI 冬令营 Day6的更多相关文章
- FOI冬令营 Day4
目录 T1.循环流(flow) 传送门 Code T2.整除分块(mex) 传送门 Code T3.森林(forest) 传送门 Code 咕咕咕 T1.循环流(flow) 传送门 Code /* 特 ...
- FOI冬令营 Day 3
目录 T1.签到题(sort) 传送门 Code T2.送分题(queue) 传送门 Code T3.简单题(game) 传送门 Code 咕咕咕 T1.签到题(sort) 传送门 原题:LOJ 27 ...
- FOI冬令营 Day2
目录 T1.直径(diameter) 传送门 Code T2.定价(price) 传送门 Code T3.排序(sort) 传送门 Code T1.直径(diameter) 传送门 Code //20 ...
- FOI冬令营 Day1
目录 T1.全连(fc) 传送门 Code T2.原样输出(copy) 传送门 Code T3.不同的缩写(diff) 传送门 Code 打算把省冬的题目放上来,主要是防止自己偷懒不订正 T1. ...
- JSOI2018冬令营游记&总结（迁移自洛谷博客）
游记 一开始在冬令营还没开始的时候,十分期待,殊不知每天都有一场浩劫在等着我. Day0 10:50出发,看见lbn同学发了一条说说,也随便发了一个. 然后在车上一直在睡觉,现在感觉挺后悔的,其实可以 ...
- Python之路,Day6 - Python基础6
本节大纲: 模块介绍 time &datetime模块 random os sys shutil json & picle shelve xml处理 yaml处理 configpars ...
- day6
开发一个简单的python计算器 实现加减乘除及拓号优先级解析 用户输入 1 - 2 * ( (60-30 +(-40/5) * (9-2*5/3 + 7 /3*99/4*2998 +10 * 568 ...
- Python学习记录day6
title: Python学习记录day6 tags: python author: Chinge Yang date: 2016-12-03 --- Python学习记录day6 @(学习)[pyt ...
- AC日记——C’s problem(c) TYVJ P4746 （清北学堂2017冬令营入学测试第三题）
P4746 C’s problem(c) 时间: 1000ms / 空间: 655360KiB / Java类名: Main 背景 冬令营入学测试 描述 题目描述 小C是一名数学家,由于它自制力比 ...
随机推荐
- em...刚打完一点cf。。 有点子感悟
首先,下笔一定要读清楚题目. 情况多考虑一下. 这几次的模拟赛,分类思想很重要,往往一大坨东西扔给你,你不去尝试分类的话就很难整理清楚.
- java 线程同步、死锁
转载地址:速学堂 https://www.sxt.cn/Java_jQuery_in_action/eleven-thread-synchronization.html 什么是线程同步 同步问题的提 ...
- Gogs + Drone 实现CI/CD（CD）
前文已经实现CI部分,本文继续以Asp.Net Core实现CD部分. 创建gogs仓库 首先在gogs创建一个空项目drone-ci-demo,本地新建一个asp.net core项目,并且在与.c ...
- VBA分别使用MSXML的DOM属性和XPATH进行网页爬虫
本文要重点介绍的是VBA中的XmlHttp对象(MSXML2.XMLHTTP或MSXML.XMLHTTP),它可以向http服务器发送请求并使用微软XML文档对象模型Microsoft XML Doc ...
- 在Linux上安装Zookeeper集群
xl_echo编辑整理,欢迎转载,转载请声明文章来源.欢迎添加echo微信(微信号:t2421499075)交流学习. 百战不败,依不自称常胜,百败不颓,依能奋力前行.——这才是真正的堪称强大!! - ...
- c#的异步处理思路和vue前端中异步处理思路比较
前语:目前工作在做的项目是前端基于vue的组件式开发,通过api接口调用,后端数据逻辑是一个c#实现的WCF服务 1.总结自己在c# .NET 4.5后的新异步方式 async搭配await来实现 ...
- js数组转对象
var obj = {}; var arr = [1,2,3,4,5]; for (var x in arr){ obj[x] = x; } 2.ES6的Object.assign: Object.a ...
- iOS音频学习笔记三：音频会话管理
使用Audio Session API ,可以指定App需要的音频行为,比如,当播放音频时,使得其他应用App静音或者混和在一起,也可以指定当App的音频被中断(例如被电话)时的行为,还 ...
- zookeeper安装简要步骤
vi zoo.cfg1.dataDir=/var/zookeeper2.server.1=zoo1:2888:3888server.2=zoo2:2888:3888server.3=zoo3:2888 ...
- awk 表达式
awk动作表达式中的算数运算符 awk动作表达式中的算数运算符 案例演示 使用awk计算/etc/services中的空白行数 awk 'BEGIN{sum=0}/^$/{++sum}END{prin ...