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QOJ

IDSubmission IDProblemHackerOwnerResultSubmit timeJudge time
#987#640456#7038. Carpets RemovalIcedpiggyIcedpiggyFailed.2024-10-14 13:00:262024-10-14 13:00:26

Details

Extra Test:

Accepted
time: 5059ms
memory: 187136kb

input:

200
10000 500
1 1 1 500
2 2 1 500
3 3 1 500
4 4 1 500
5 5 1 500
6 6 1 500
7 7 1 500
8 8 1 500
9 9 1 500
10 10 1 500
11 11 1 500
12 12 1 500
13 13 1 500
14 14 1 500
15 15 1 500
16 16 1 500
17 17 1 500
18 18 1 500
19 19 1 500
20 20 1 500
21 21 1 500
22 22 1 500
23 23 1 500
24 24 1 500
25 25 1 500
26 2...

output:

249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999
249999...

result:

ok 200 lines

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#640456#7038. Carpets RemovalIcedpiggyAC ✓1239ms213652kbC++143.0kb2024-10-14 12:50:282024-10-14 12:50:28

answer

#include<bits/stdc++.h>
using namespace std;
#define i64 long long
#define i128 __int128
char buf[1<<21],*rp1=buf,*rp2=buf;
#define getchar() (rp1==rp2&&(rp2=(rp1=buf)+fread(buf,1,1<<21,stdin),rp1==rp2)?EOF:*rp1++)
inline i64 rd()
{
	i64 num=0;char ch=getchar();bool op=0;
	for(;!isdigit(ch);ch=getchar())if(ch=='-')op=1;
	for(;isdigit(ch);ch=getchar())num=num*10+(ch-'0');
	return op?-num:num;
}

inline void Max(int &x,int v){if(x<v)x=v;}
template<typename T>
inline void operator += (vector<T>&A,const T&v){A.emplace_back(v);}

const int N=3e5+10,M=1505;
#define pii pair<int,int>
#define fi first
#define se second

int n,m,w=0;
pii a[M][M];
int Sum[N];
struct P{int l,r,v;};
vector<P> A[M],B[M];

map<int,int> s[N];

int cnt=0,Ans=0;

inline void upd(pii &res,int x)
{
	if(res.fi!=0)
		res=pii(-1,-1);
	else if(res.se!=0)
		res.fi=x;
	else
		res.se=x;
}
struct Seg
{
	#define ls (p<<1)
	#define rs (p<<1|1)
	#define lson l,mid,p<<1
	#define rson mid+1,r,p<<1|1
	#define dmid int mid=(l+r)>>1
	
	#define root 1,m,1
	
	int tag[1<<12|3];
	bitset<N> t[1<<12|3];
	vector<int> s[1<<12|3];
	
	inline void reset(int p)
	{
		vector<int> st;
		while(!s[p].empty())
		{
			int x=s[p].back();s[p].pop_back();
			if(t[p][x])st+=x;
		}
		s[p].swap(st);
	}
	inline void ins(int L,int R,int v,int l,int r,int p)
	{
		if(L<=l&&r<=R){t[p][v]=1,tag[p]++,s[p]+=v;return;}
		dmid;if(L<=mid)ins(L,R,v,lson);if(mid<R)ins(L,R,v,rson);
	}
	inline void del(int L,int R,int v,int l,int r,int p)
	{
		if(L<=l&&r<=R){t[p][v]=0,tag[p]--;return;}
		dmid;if(L<=mid)del(L,R,v,lson);if(mid<R)del(L,R,v,rson);
	}
	inline void mkRow(int i,pii res,int l,int r,int p)
	{
		if(res.fi!=-1)
		{
			if(tag[p]<=2)
			{
				reset(p);
				for(int x:s[p])upd(res,x);	 
			}
			else res=pii(-1,-1);
		}
		if(l==r){a[i][l]=res;return;}
		dmid;mkRow(i,res,lson),mkRow(i,res,rson);
	}
	inline void build(int l,int r,int p)
	{
		tag[p]=0;vector<int>().swap(s[p]);
		if(l==r)return;dmid;build(lson),build(rson);
	}
};
Seg t;

inline void work()
{
	n=rd(),m=rd(),w=0;cnt=0,Ans=0;
	for(int i=0;i<=m+1;i++)vector<P>().swap(A[i]),vector<P>().swap(B[i]);
	
	t.build(root);
	for(int i=1;i<=n;i++)
	{
		map<int,int>().swap(s[i]);
		int x0=rd(),x1=rd(),y0=rd(),y1=rd();Sum[i]=0;
		A[x0]+=(P){y0,y1,i};B[x1+1]+=(P){y0,y1,i};
	}
	
	t.build(root);
	for(int i=1;i<=m;i++)
	{
		for(P p:A[i])t.ins(p.l,p.r,p.v,root);
		for(P p:B[i])t.del(p.l,p.r,p.v,root);
		t.mkRow(i,pii(0,0),root);
	}
	for(P p:B[m+1])t.del(p.l,p.r,p.v,root);
	
	for(int i=1;i<=m;i++)
		for(int j=1;j<=m;j++)
		{
			if(a[i][j].fi>a[i][j].se)swap(a[i][j].fi,a[i][j].se);
			if(a[i][j].se==0)cnt++;
			else if(a[i][j].fi==0)Sum[a[i][j].se]++;
		}
	for(int i=1;i<=m;i++)
		for(int j=1;j<=m;j++)
			if(a[i][j].fi>0)
			{
				int x=a[i][j].fi,y=a[i][j].se;
				Max(Ans,Sum[x]+Sum[y]+(++s[x][y]));
			}
	sort(Sum+1,Sum+n+1);
	Max(Ans,Sum[n]+Sum[n-1]);
	printf("%d\n",m*m-cnt-Ans);
}
int main()
{
	for(int test=rd();test;test--)work();
	return 0;
}