Submission #1226815

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Source Code Expand

#define _GLIBCXX_IOSTREAM
#include<bits/stdc++.h>

typedef unsigned int uint;
typedef long long ll;
typedef unsigned long long ull;
typedef double lf;
typedef long double llf;
typedef std::pair<int,int> pii;

#define xx first
#define yy second

template<typename T> inline T max(T a,T b){return a>b?a:b;}
template<typename T> inline T min(T a,T b){return a<b?a:b;}
template<typename T> inline T abs(T a){return a>0?a:-a;}
template<typename T> inline bool repr(T &a,T b){return a<b?a=b,1:0;}
template<typename T> inline bool repl(T &a,T b){return a>b?a=b,1:0;}
template<typename T> inline T gcd(T a,T b){T t;if(a<b){while(a){t=a;a=b%a;b=t;}return b;}else{while(b){t=b;b=a%b;a=t;}return a;}}
template<typename T> inline T sqr(T x){return x*x;}
#define mp(a,b) std::make_pair(a,b)
#define pb push_back
#define I inline
#define mset(a,b) memset(a,b,sizeof(a))
#define mcpy(a,b) memcpy(a,b,sizeof(a))

#define fo0(i,n) for(int i=0,i##end=n;i<i##end;i++)
#define fo1(i,n) for(int i=1,i##end=n;i<=i##end;i++)
#define fo(i,a,b) for(int i=a,i##end=b;i<=i##end;i++)
#define fd0(i,n) for(int i=(n)-1;~i;i--)
#define fd1(i,n) for(int i=n;i;i--)
#define fd(i,a,b) for(int i=a,i##end=b;i>=i##end;i--)
#define foe(i,x)for(__typeof(x.end())i=x.begin();i!=x.end();++i)

struct Cg{I char operator()(){return getchar();}};
struct Cp{I void operator()(char x){putchar(x);}};
#define OP operator
#define RT return *this;
#define RX x=0;char t=P();while((t<'0'||t>'9')&&t!='-')t=P();bool f=0;\
if(t=='-')t=P(),f=1;x=t-'0';for(t=P();t>='0'&&t<='9';t=P())x=x*10+t-'0'
#define RL if(t=='.'){lf u=0.1;for(t=P();t>='0'&&t<='9';t=P(),u*=0.1)x+=u*(t-'0');}if(f)x=-x
#define RU x=0;char t=P();while(t<'0'||t>'9')t=P();x=t-'0';for(t=P();t>='0'&&t<='9';t=P())x=x*10+t-'0'
#define TR *this,x;return x;
I bool IS(char x){return x==10||x==13||x==' ';}template<typename T>struct Fr{T P;I Fr&OP,(int &x)
{RX;if(f)x=-x;RT}I OP int(){int x;TR}I Fr&OP,(ll &x){RX;if(f)x=-x;RT}I OP ll(){ll x;TR}I Fr&OP,(char &x)
{for(x=P();IS(x);x=P());RT}I OP char(){char x;TR}I Fr&OP,(char *x){char t=P();for(;IS(t);t=P());if(~t){for(;!IS
(t)&&~t;t=P())*x++=t;}*x++=0;RT}I Fr&OP,(lf &x){RX;RL;RT}I OP lf(){lf x;TR}I Fr&OP,(llf &x){RX;RL;RT}I OP llf()
{llf x;TR}I Fr&OP,(uint &x){RU;RT}I OP uint(){uint x;TR}I Fr&OP,(ull &x){RU;RT}I OP ull(){ull x;TR}};Fr<Cg>in;
#define WI(S) if(x){if(x<0)P('-'),x=-x;char s[S],c=0;while(x)s[c++]=x%10+'0',x/=10;while(c--)P(s[c]);}else P('0')
#define WL if(y){lf t=0.5;for(int i=y;i--;)t*=0.1;if(x>=0)x+=t;else x-=t,P('-');*this,(ll)(abs(x));P('.');if(x<0)\
x=-x;while(y--){x*=10;x-=floor(x*0.1)*10;P(((int)x)%10+'0');}}else if(x>=0)*this,(ll)(x+0.5);else *this,(ll)(x-0.5);
#define WU(S) if(x){char s[S],c=0;while(x)s[c++]=x%10+'0',x/=10;while(c--)P(s[c]);}else P('0')
template<typename T>struct Fw{T P;I Fw&OP,(int x){WI(10);RT}I Fw&OP()(int x){WI(10);RT}I Fw&OP,(uint x){WU(10);RT}
I Fw&OP()(uint x){WU(10);RT}I Fw&OP,(ll x){WI(19);RT}I Fw&OP()(ll x){WI(19);RT}I Fw&OP,(ull x){WU(20);RT}I Fw&OP()
(ull x){WU(20);RT}I Fw&OP,(char x){P(x);RT}I Fw&OP()(char x){P(x);RT}I Fw&OP,(const char *x){while(*x)P(*x++);RT}
I Fw&OP()(const char *x){while(*x)P(*x++);RT}I Fw&OP()(lf x,int y){WL;RT}I Fw&OP()(llf x,int y){WL;RT}};Fw<Cp>out;

const int N=100007;

int n,a[N],b[N],c[N],v[N*3],vm,p[N*3],sf[N*3],sp[N*3],f[N*3];

inline int get(int x)
{
	return std::lower_bound(v,v+vm,x)-v+1;
}

struct Q
{
	int l,r;
	inline bool operator<(const Q&x)const
	{
		return l>x.l||(l==x.l&&r<x.r);
	}
};

struct cmp
{
	inline bool operator()(const Q&a,const Q&b)const
	{
		return a.r<b.r;
	}
};

std::vector<int>q[N*3];
std::priority_queue<Q>pq;
std::priority_queue<Q,std::vector<Q>,cmp>q2;

int main()
{
	in,n;
	fo1(i,n)in,a[i],b[i];
	fo1(i,n+1)in,c[i];
	fo1(i,n)v[vm++]=a[i];
	fo1(i,n)v[vm++]=b[i];
	fo1(i,n+1)v[vm++]=c[i];
	std::sort(v,v+vm);
	vm=std::unique(v,v+vm)-v;
	fo1(i,n)a[i]=get(a[i]);
	fo1(i,n)b[i]=get(b[i]);
	fo1(i,n+1)c[i]=get(c[i]);
	//fo1(i,n)out,a[i],' ',b[i],'\n';
	//fo1(i,n+1)out,c[i],' ';out,'\n';
	fo1(i,n)p[a[i]]++;
	fo1(i,n+1)p[c[i]]--;
	fo1(i,vm)p[i]+=p[i-1];
	//fo1(i,vm)out,p[i],' ';out,'\n';
	//fo1(i,n)if(a[i]>b[i])
	//	out,b[i],' ',a[i]-1,'\n';
	fo1(i,n)if(a[i]>b[i])
		q[a[i]-1].pb(b[i]);
	int del=0,cnt=0;
	fd1(i,vm)
	{
		foe(j,q[i])pq.push((Q){*j,i});
		q[i].clear();
		p[i]+=del+=sp[i];
		while(p[i]<-1)
		{
			if(pq.empty())goto yjq;
			Q s=pq.top();pq.pop();
			while(s.l>i)
			{
				q[s.l].pb(s.r);
				if(pq.empty())goto yjq;
				s=pq.top();
				pq.pop();
			}
			sp[s.l-1]--;
			sf[i+1]++;
			sf[s.r+1]--;
			del++;
			p[i]++;
			cnt++;
		}
	}
	//out,cnt,'\n';
	while(!pq.empty())q[pq.top().l].pb(pq.top().r),pq.pop();
	del=0;
	fo1(i,vm)
	{
		p[i]+=del+=sf[i];
		foe(j,q[i])q2.push((Q){i,*j});
		f[i]=cnt;
		//out,'|',p[i],'\n';
		if(p[i]==-1)
		{
			Q s=(Q){0,0};
			while(!q2.empty()&&s.r<i)s=q2.top(),q2.pop();
			if(s.r<i)cnt=19260817;
			else
			{
				//out,i,' ',s.l,' ',s.r,'\n';
				del++;
				sf[s.r+1]--;
				cnt++;
			}
		}
	}
	f[vm+1]=19260817;
	for(int m=in;m--;)
	{
		int x,y;
		in,x,y;
		x=get(x),y=get(y);
		int a=max(n-f[x]+1,n-f[y]);
		if(a<0)out,"-1\n";else out,a,'\n';
	}
	return 0;yjq:
	for(int m=in;m--;)out,"-1\n";
}

Submission Info

Judge Result