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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#188910#5310. PaintingExplodingKonjacAC ✓324ms53908kbC++177.3kb2023-09-26 16:30:252023-09-26 16:30:27

Judging History

你现在查看的是最新测评结果

  • [2023-09-26 16:30:27]
  • 评测
  • 测评结果:AC
  • 用时:324ms
  • 内存:53908kb
  • [2023-09-26 16:30:25]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define OPENIOBUF

namespace FastIO
{

class FastIOBase
{
 protected:
#ifdef OPENIOBUF
	static const int BUFSIZE=1<<16;
	char buf[BUFSIZE+1];
	int buf_p=0;
#endif
	FILE *target;
	FastIOBase(FILE *f): target(f){}
	~FastIOBase()=default;
 public:
#ifdef OPENIOBUF
	virtual void flush()=0;
#endif
};

class FastOutput final: public FastIOBase
{
 private:
	void __putc(char x)
	{
#ifdef OPENIOBUF
		if(buf[buf_p++]=x,buf_p==BUFSIZE) flush();
#else
		putc(x,target);
#endif
	}
	template<typename T>
	void __write(T x)
	{
		char stk[64],*top=stk;
		if(x<0) return __putc('-'),__write(-x);
		do *(top++)=x%10,x/=10; while(x);
		for(;top!=stk;__putc(*(--top)+'0'));
	}
 public:
	FastOutput(FILE *f=stdout): FastIOBase(f) {}
#ifdef OPENIOBUF
	~FastOutput() { flush(); }
	void flush() { fwrite(buf,1,buf_p,target),buf_p=0; }
#endif
	FastOutput &operator <<(char x)
	{ return __putc(x),*this; }
	FastOutput &operator <<(const char *s)
	{ for(;*s;__putc(*(s++)));return *this; }
	FastOutput &operator <<(const std::string &s)
	{ return (*this)<<s.c_str(); }
	template<typename T>
	std::enable_if_t<std::is_integral<T>::value,FastOutput&> operator <<(const T &x)
	{ return __write(x),*this; }
	template<typename ...T>
	void writesp(const T &...x)
	{ std::initializer_list<int>{(this->operator<<(x),__putc(' '),0)...}; }
	template<typename ...T>
	void writeln(const T &...x)
	{ std::initializer_list<int>{(this->operator<<(x),__putc('\n'),0)...}; }
	template<typename Iter>
	void writesp(Iter begin,Iter end)
	{ while(begin!=end) (*this)<<*(begin++)<<' '; }
	template<typename Iter>
	void writeln(Iter begin,Iter end)
	{ while(begin!=end) (*this)<<*(begin++)<<'\n'; }
}qout;

class FastInput final: public FastIOBase
{
 private:
	bool __eof;
 public:
	FastInput(FILE *f=stdin): FastIOBase(f),__eof(false)
#ifdef OPENIOBUF
	{ buf_p=BUFSIZE; }
	void flush() { buf[fread(buf,1,BUFSIZE,target)]=EOF,buf_p=0; }
	bool eof()const { return buf[buf_p]==EOF; }
#else
	{}
	bool eof()const { return feof(target); }
#endif
	char get()
	{
		if(__eof) return EOF;
#ifdef OPENIOBUF
		if(buf_p==BUFSIZE) flush();
		char ch=buf[buf_p++];
#else
		char ch=getc(target);
#endif
		return ~ch?ch:(__eof=true,EOF);
	}
	void unget(char c)
	{
		__eof=false;
#ifdef OPENIOBUF
		buf_p--;
#else
		ungetc(c,target);
#endif
	}
	explicit operator bool()const { return !__eof; }
	FastInput &operator >>(char &x)
	{ while(isspace(x=get()));return *this; }
	template<typename T>
	std::enable_if_t<std::is_integral<T>::value,FastInput&> operator >>(T &x)
	{
		char ch,sym=0;x=0;
		while(isspace(ch=get()));
		if(__eof) return *this;
		if(ch=='-') sym=1,ch=get();
		for(;isdigit(ch);x=(x<<1)+(x<<3)+(ch^48),ch=get());
		return unget(ch),sym?x=-x:x,*this;
	}
	FastInput &operator >>(char *s)
	{
		while(isspace(*s=get()));
		if(__eof) return *this;
		for(;!isspace(*s) && !__eof;*(++s)=get());
		return unget(*s),*s='\0',*this;
	}
	FastInput &operator >>(std::string &s)
	{
		char str_buf[(1<<8)+1]={0},*p=str_buf;
		char *const buf_end=str_buf+(1<<8);
		while(isspace(*p=get()));
		if(__eof) return *this;
		for(s.clear(),p++;;p=str_buf)
		{
			for(;p!=buf_end && !isspace(*p=get()) && !__eof;p++);
			if(p!=buf_end) break;
			s.append(str_buf);
		}
		unget(*p),*p='\0',s.append(str_buf);
		return *this;
	}
	template<typename ...T>
	void read(T &...x)
	{ std::initializer_list<int>{(this->operator>>(x),0)...}; }
	template<typename Iter>
	void read(Iter begin,Iter end)
	{ while(begin!=end) (*this)>>*(begin++); }
}qin;

} // namespace FastIO
using FastIO::qin,FastIO::qout;

using LL=long long;
using LD=long double;
using UI=unsigned int;
using ULL=unsigned long long;

#ifndef DADALZY
#define FILEIO(file) freopen(file".in","r",stdin),freopen(file".out","w",stdout)
#define LOG(...) void()
#else
#define FILEIO(file)
#define LOG(...) fprintf(stderr,__VA_ARGS__)
#endif

namespace Math
{

// A class for 2D vectors.
template<typename T>
struct Vector2d
{
#define DEF_OP1(op) \
	Vector2d &operator op##=(const Vector2d &rhs) \
	{ return x op##= rhs.x,y op##= rhs.y,*this; } \
	Vector2d operator op(const Vector2d &rhs)const \
	{ return Vector2d(*this)op##=rhs; }
	T x,y;
	Vector2d(): x(0),y(0){}
	Vector2d(T _x,T _y): x(_x),y(_y){}
	DEF_OP1(+) DEF_OP1(-) DEF_OP1(*) DEF_OP1(/)
	Vector2d &operator *=(T scale)
	{ return x*=scale,y*=scale,*this; }
	friend Vector2d operator *(T scale,const Vector2d &u)
	{ return Vector2d(u)*=scale; }
	friend Vector2d operator *(const Vector2d &u,T scale)
	{ return Vector2d(u)*=scale; }
	friend auto cross(const Vector2d &u,const Vector2d &v)
	{ return u.x*v.y-u.y*v.x; }
	friend auto dot(const Vector2d &u,const Vector2d &v)
	{ return u.x*v.x+u.y*v.y; }
	friend auto abs(const Vector2d &u)
	{ return hypot(u.x,u.y); }
	friend auto abs2(const Vector2d &u)
	{ return u.x*u.x+u.y*u.y; }
	friend auto arg(const Vector2d &u)
	{ return atan2(u.y,u.x); }
	auto proj(const Vector2d &u)const
	{ return (*this)*(dot(u,*this)/abs2(*this)); }
	auto trunc(T r=1)const
	{ T l=abs(*this);return sgn(l)?(*this)*(r/l):*this; }
	auto rotate(T t)const
	{ return Vector2d(x*cos(t)-y*sin(t),x*sin(t)+y*cos(t)); }
	bool operator <(const Vector2d &rhs)const
	{ return x!=rhs.x?x<rhs.x:y<rhs.y; }
	bool operator ==(const Vector2d &rhs)const
	{ return FEQ(x,rhs.x) && FEQ(y,rhs.y); }
	bool operator !=(const Vector2d &rhs)const
	{ return FNE(x,rhs.x) || FNE(y,rhs.y); }
#undef DEF_OP1
};

} // namespace Math
using RVec=Math::Vector2d<LD>;

constexpr int V=1e6;
int n,W,m,a[300005],b[300005];

map<int,int> mp;
int f[300005][20],dep[300005];
RVec p[300005];
RVec intersect(int x,int y)
{
	if(x==1) return RVec(W,b[y]);
	if(y==1) return RVec(W,b[x]);
	return RVec(LD(a[x]-a[y])*W/(a[x]-a[y]-b[x]+b[y]),
				-((LD)a[y]*b[x]-(LD)a[x]*b[y])/(a[x]-a[y]-b[x]+b[y]));
}
void norm(LL &num,LL &den)
{
	LL g=__gcd(num,den);
	num/=g,den/=g;
}
void add(int u,int fa)
{
	f[u][0]=fa,dep[u]=dep[fa]+1;
	for(int i=1;(1<<i)<=dep[u];i++)
		f[u][i]=f[f[u][i-1]][i-1];
	mp[a[u]]=u;
	p[u]=intersect(u,fa);
}
int lca(int u,int v)
{
	if(dep[u]<dep[v]) swap(u,v);
	for(int i=18;i>=0;i--)
		if(dep[f[u][i]]>=dep[v])
			u=f[u][i];
	if(u==v) return u;
	for(int i=18;i>=0;i--)
		if(f[u][i]!=f[v][i])
			u=f[u][i],v=f[v][i];
	return f[u][0];
}

int main()
{
	qin>>n>>W;
	m=3,dep[1]=1;
	a[2]=b[2]=0,add(2,1);
	a[3]=b[3]=V+1,add(3,1);
	for(int o=1;o<=n;o++)
	{
		int opt,s,t;
		qin>>s>>t>>opt;
		auto it=mp.lower_bound(s);
		RVec vs(0,s),vt(W,t);
		int u=prev(it)->second,v=it->second,w=lca(u,v);
		for(int i=18;i>=0;i--)
			if(dep[f[u][i]]>dep[w] && cross(vt-vs,p[f[u][i]]-vs)<0)
				u=f[u][i];
		for(int i=18;i>=0;i--)
			if(dep[f[v][i]]>dep[w] && cross(vt-vs,p[f[v][i]]-vs)>0)
				v=f[v][i];
		if(u!=w && cross(vt-vs,p[u]-vs)<0)
			u=f[u][0];
		if(v!=w && cross(vt-vs,p[v]-vs)>0)
			v=f[v][0];
		w=(u==w?v:v==w?u:0);
		assert(w);
		LL xnum=(w==1?W:LL(s-a[w])*W),xden=(w==1?1:(s-a[w]-t+b[w])),
		   ynum=(w==1?t:-((LL)a[w]*t-(LL)s*b[w])),yden=(w==1?1:(s-a[w]-t+b[w]));
		norm(xnum,xden);
		norm(ynum,yden);
		qout<<'('<<xnum<<'/'<<xden<<','
				 <<ynum<<'/'<<yden<<")\n";
		if(opt) m++,a[m]=s,b[m]=t,add(m,w);
	}
	return 0;
}
/*
4 3
1 2 1
2 1 1
3 1 0
3 2 1

*/

詳細信息

Test #1:

score: 100
Accepted
time: 5ms
memory: 19456kb

input:

4 3
1 2 1
2 1 1
3 1 0
3 2 1

output:

(3/1,2/1)
(3/2,3/2)
(2/1,5/3)
(3/1,2/1)

result:

ok 4 lines

Test #2:

score: 0
Accepted
time: 144ms
memory: 19408kb

input:

300000 894665
1 1000000 1
2 999999 1
3 999997 1
4 999994 1
5 999990 1
6 999985 1
7 999979 1
8 999972 1
9 999964 1
10 999955 1
11 999945 1
12 999934 1
13 999922 1
14 999909 1
15 999895 1
16 999880 1
17 999864 1
18 999847 1
19 999829 1
20 999810 1
21 999790 1
22 999769 1
23 999747 1
24 999724 1
25 999...

output:

(894665/1,1000000/1)
(894665/2,1000001/2)
(894665/3,1000003/3)
(894665/4,500003/2)
(178933/1,200002/1)
(894665/6,1000015/6)
(894665/7,1000021/7)
(894665/8,250007/2)
(894665/9,1000036/9)
(178933/2,200009/2)
(894665/11,1000055/11)
(894665/12,500033/6)
(894665/13,1000078/13)
(894665/14,1000091/14)
(178...

result:

ok 300000 lines

Test #3:

score: 0
Accepted
time: 134ms
memory: 17100kb

input:

300000 748539
1 1000000 1
2 999999 1
3 999997 1
4 999994 1
5 999990 1
6 999985 1
7 999979 1
8 999972 1
9 999964 1
10 999955 1
11 999945 1
12 999934 1
13 999922 1
14 999909 1
15 999895 1
16 999880 1
17 999864 1
18 999847 1
19 999829 1
20 999810 1
21 999790 1
22 999769 1
23 999747 1
24 999724 1
25 999...

output:

(748539/1,1000000/1)
(748539/2,1000001/2)
(249513/1,1000003/3)
(748539/4,500003/2)
(748539/5,200002/1)
(249513/2,1000015/6)
(748539/7,1000021/7)
(748539/8,250007/2)
(83171/1,1000036/9)
(748539/10,200009/2)
(68049/1,1000055/11)
(249513/4,500033/6)
(748539/13,1000078/13)
(748539/14,1000091/14)
(249513...

result:

ok 300000 lines

Test #4:

score: 0
Accepted
time: 205ms
memory: 25512kb

input:

300000 329779
725400 466189 0
162004 217124 0
17706 369295 0
143330 449439 0
974743 495692 0
476940 609424 0
307270 769869 0
664031 252064 0
350818 610178 1
432310 398376 1
578066 277363 0
891345 770652 0
815291 550496 0
756083 89624 0
867560 132663 0
668047 648059 0
758279 558971 0
647877 798646 0
...

output:

(329779/1,466189/1)
(329779/1,217124/1)
(329779/1,369295/1)
(329779/1,449439/1)
(329779/1,495692/1)
(329779/1,609424/1)
(329779/1,769869/1)
(329779/1,252064/1)
(329779/1,610178/1)
(13437175134/146647,62014289806/146647)
(10705945456/80009,36488460402/80009)
(329779/1,770652/1)
(153173441467/524155,6...

result:

ok 300000 lines

Test #5:

score: 0
Accepted
time: 263ms
memory: 36300kb

input:

300000 694159
107635 109585 0
534761 296221 0
144102 179000 0
538335 642812 1
51653 789858 1
260572 297502 0
422312 230960 1
323495 527460 0
117743 91695 1
875390 106429 0
592512 956940 1
429082 37803 1
711668 658986 1
614065 738921 1
667461 145160 1
480889 809090 0
468893 650474 1
945932 974900 0
8...

output:

(694159/1,109585/1)
(694159/1,296221/1)
(694159/1,179000/1)
(694159/1,642812/1)
(168917345219/316864,196002519097/316864)
(145023004121/701275,38089601594/140255)
(257296280781/929557,321636734816/929557)
(68594709903/395317,148038282320/395317)
(15292322770/254751,29421309553/254751)
(233969761745/...

result:

ok 300000 lines

Test #6:

score: 0
Accepted
time: 280ms
memory: 47068kb

input:

300000 841571
864537 929867 1
827774 222788 1
594947 97405 1
136507 869841 1
767546 276887 0
214999 287658 1
193877 95397 1
880581 221638 1
435653 172067 1
708385 794804 1
112241 426357 1
269382 890618 1
639737 968391 1
984457 815612 1
178024 935648 1
786418 222454 1
698936 199097 1
604327 637464 1
...

output:

(841571/1,929867/1)
(841571/1,222788/1)
(841571/1,97405/1)
(96452452310/307719,126053207273/307719)
(5631793132/12703,6466646810/12703)
(22018863644/220225,49249204851/220225)
(24140464135/415907,77809902639/415907)
(13502165124/724273,627208961121/724273)
(125876299183/498460,88865122801/249230)
(1...

result:

ok 300000 lines

Test #7:

score: 0
Accepted
time: 309ms
memory: 52716kb

input:

300000 423599
702291 13316 0
823376 324624 1
332084 339170 1
796909 473709 0
414801 475840 1
712638 235854 1
613165 447937 1
252983 673258 1
622687 27409 1
982234 935915 1
444618 148018 0
902272 211128 1
318963 363730 1
447033 949507 0
219549 778365 1
903735 908804 1
830179 642747 1
383246 554384 1
...

output:

(423599/1,13316/1)
(423599/1,324624/1)
(104055399954/252919,85731000752/252919)
(11211394733/175552,2052263037/2743)
(173071961425/559791,257140876016/559791)
(11469405033/48893,21933562806/48893)
(42136663327/311556,2078565594/3709)
(33507104499/413189,137773965562/413189)
(672251613/71675,43686384...

result:

ok 300000 lines

Test #8:

score: 0
Accepted
time: 324ms
memory: 53908kb

input:

300000 606503
969162 499887 1
982467 476155 1
813898 466871 1
919610 819701 1
267484 907609 1
824721 490861 1
387197 878325 1
809204 742752 1
35348 71222 1
75368 820418 1
733140 325762 1
121959 320121 1
104047 533979 1
845038 737152 0
827435 615384 1
982300 340253 1
50533 570452 1
734351 776533 1
92...

output:

(606503/1,499887/1)
(8069522415/37037,29651149119/37037)
(606503/1,466871/1)
(15026718328/184683,55786996082/61561)
(165700865121/493576,306910313659/493576)
(606503/1,490861/1)
(258795436603/838155,534095910263/838155)
(2846925082/280575,226730486612/280575)
(606503/1,71222/1)
(447920660590/1092077...

result:

ok 300000 lines

Test #9:

score: 0
Accepted
time: 144ms
memory: 21460kb

input:

300000 879149
116071 862 0
158243 245 0
148791 414 0
696577 955 0
382289 841 1
753537 277 0
691381 102 0
902273 638 0
636078 121 0
846069 338 0
209415 476 0
938281 286 0
567567 812 0
395269 317 0
638750 19 0
822890 57 0
529243 137 1
784931 595 0
904266 457 0
281103 606 0
207471 884 0
953117 757 0
87...

output:

(879149/1,862/1)
(879149/1,245/1)
(879149/1,414/1)
(879149/1,955/1)
(879149/1,841/1)
(81595576988/92953,131957641/92953)
(271737922708/309831,542457943/309831)
(457143413616/520187,514911211/520187)
(223118345561/254509,488684629/254509)
(407731723220/464283,582330347/464283)
(879149/1,476/1)
(48879...

result:

ok 300000 lines

Test #10:

score: 0
Accepted
time: 182ms
memory: 24272kb

input:

300000 310835
319788 772 0
497504 964 0
894936 618 0
294654 90 0
881733 706 0
245858 983 0
559020 541 0
736248 666 0
453767 954 0
158758 958 0
763887 432 0
536922 327 0
882208 941 0
674991 503 0
92620 448 0
168993 777 1
645752 987 0
354095 426 0
356444 434 0
250356 643 1
279019 297 0
64002 163 0
804...

output:

(310835/1,772/1)
(310835/1,964/1)
(310835/1,618/1)
(310835/1,90/1)
(310835/1,706/1)
(310835/1,983/1)
(310835/1,541/1)
(310835/1,666/1)
(310835/1,954/1)
(310835/1,958/1)
(310835/1,432/1)
(310835/1,327/1)
(310835/1,941/1)
(310835/1,503/1)
(310835/1,448/1)
(310835/1,777/1)
(310835/1,987/1)
(57536180170...

result:

ok 300000 lines

Test #11:

score: 0
Accepted
time: 207ms
memory: 32884kb

input:

300000 735537
701978 710 1
317350 506 1
994500 510 0
29112 354 1
595720 267 0
187266 549 0
778998 808 1
611272 914 0
99687 461 0
99147 712 0
156253 168 0
700158 863 0
39453 626 0
855867 553 0
841635 917 0
644146 114 1
519578 971 1
753580 742 1
219545 199 0
564270 186 0
26278 263 1
128304 400 0
34213...

output:

(735537/1,710/1)
(735537/1,506/1)
(35860125719/48787,58014370/48787)
(735537/1,354/1)
(204751434690/278609,216701870/278609)
(95681595108/130127,79468554/130127)
(735537/1,808/1)
(33358809561/45455,103802386/45455)
(735537/1,461/1)
(53498793337/72803,175784818/218409)
(93516909717/127327,50422746/12...

result:

ok 300000 lines

Test #12:

score: 0
Accepted
time: 275ms
memory: 49164kb

input:

300000 737138
938874 996 0
236261 342 1
294733 837 1
495487 53 1
767065 449 1
527431 967 1
769556 678 1
190570 261 0
937523 748 1
132549 535 1
666839 915 1
587237 49 1
621620 405 1
349581 510 1
234810 702 1
324423 189 1
201382 183 1
928491 1 0
616164 513 1
197342 29 1
49493 565 1
764718 8 1
657160 5...

output:

(737138/1,996/1)
(737138/1,342/1)
(737138/1,837/1)
(73991701026/100769,199550885/100769)
(43521733227/59090,31856143/29545)
(44160831873/60038,63116917/30019)
(175005038287/237491,222144699/237491)
(737138/1,261/1)
(473824935020/642879,564246467/642879)
(76450056256/103905,81067877/103905)
(18470098...

result:

ok 300000 lines