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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#161370#7105. Pixel Artucup-team134#AC ✓327ms12416kbC++143.0kb2023-09-02 23:32:492023-09-04 04:31:06

Judging History

你现在查看的是最新测评结果

  • [2023-09-04 04:31:06]
  • 自动重测本题所有获得100分的提交记录
  • 测评结果:AC
  • 用时:327ms
  • 内存:12416kb
  • [2023-09-02 23:32:50]
  • 评测
  • 测评结果:100
  • 用时:336ms
  • 内存:12576kb
  • [2023-09-02 23:32:49]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long

const int N=100050;

int ans;
int p[N];
int Find(int x){return p[x]==x?x:p[x]=Find(p[x]);}
void Union(int x,int y){
	//printf("Union %i %i\n",x,y);
	x=Find(x);
	y=Find(y);
	if(x!=y){
		ans--;
		p[x]=y;
	}
}
void Init(int n){for(int i=1;i<=n;i++)p[i]=i;}

vector<array<int,3>> hor[N];

int active[N];
int ss[N],se[N],add[N];
int main(){
	int t;
	scanf("%i",&t);
	while(t--){
		int n,m,k;
		scanf("%i %i %i",&n,&m,&k);
		Init(k);
		vector<int> xs;
		vector<array<int,3>> evs;
		for(int i=1;i<=k;i++){
			int x1,y1,x2,y2;
			scanf("%i %i %i %i",&x1,&y1,&x2,&y2);
			if(x1==x2){
				hor[x1].pb({y1,y2,i});
				xs.pb(x1);
				add[x1]+=y2-y1+1;
			}else{
				//ver[y1].pb({x1,x2,i});
				//ys.pb(y1);

				evs.pb({x1,y1,-i});
				evs.pb({x2+1,y1,i});

				ss[x1]++;
				se[x2]++;
			}
		}
		sort(xs.begin(),xs.end());
		xs.erase(unique(xs.begin(),xs.end()),xs.end());
		//sort(ys.begin(),ys.end());
		//ys.erase(unique(ys.begin(),ys.end()),ys.end());
		for(int x:xs)sort(hor[x].begin(),hor[x].end());
		//for(int y:ys)sort(ver[y].begin(),ver[y].end());


		ll blk=0,tmp=0;

		sort(evs.begin(),evs.end());
		int ptr=0;
		set<int> act;

		ans=0;

		for(int i=1;i<=n+1;i++){
			blk+=add[i];
			tmp+=ss[i];
			blk+=tmp;
			tmp-=se[i];

			int j=0;
			array<int,3> last={-1,-1,-1};
			for(auto h:hor[i]){
				ans++;
				while(j<hor[i-1].size() && hor[i-1][j][1]<h[0])j++;
				while(j<hor[i-1].size() && hor[i-1][j][0]<=h[1]){
					Union(h[2],hor[i-1][j][2]);
					j++;
				}
				if(j>0){
					j--;
				}
				for(auto it=act.lower_bound(h[0]);it!=act.upper_bound(h[1]);it++){
					Union(h[2],active[*it]);
				}

				if(last[1]+1==h[0]){
					Union(last[2],h[2]);
				}

				last=h;
			}

			j=0;
			vector<int> added;
			while(ptr<evs.size() && evs[ptr][0]==i){
				int x=evs[ptr][0];
				int y=evs[ptr][1];
				int idx=abs(evs[ptr][2]);
				if(evs[ptr][2]<0){
					if(active[y]){
						Union(active[y],idx);
					}
					while(j<hor[i-1].size() && hor[i-1][j][1]<y)j++;
					if(j<hor[i-1].size() && hor[i-1][j][0]<=y){
						Union(idx,hor[i-1][j][2]);
					}
					added.push_back(y);
					active[y]=idx;
					act.insert(y);
					ans++;
				}else{
					if(active[y]==idx){
						active[y]=0;
						act.erase(y);
					}
				}
				ptr++;
			}

			for(int y:added){
				if(active[y-1]){
					Union(active[y-1],active[y]);
				}
				if(active[y+1]){
					Union(active[y+1],active[y]);
				}
			}

			for(auto h:hor[i]){
				if(active[h[0]-1]!=0){
					Union(active[h[0]-1],h[2]);
				}
				if(active[h[1]+1]!=0){
					Union(active[h[1]+1],h[2]);
				}
			}

			if(i<=n){
				printf("%lld %i\n",blk,ans);
			}
		}

		for(int x:xs){
			hor[x].clear();
		}
		/*for(int y:ys){
			ver[y].clear();
		}*/
		for(int i=0;i<=n+1;i++){
			add[i]=ss[i]=se[i]=0;
			//bal[i]=0;
			//spec[i]=0;
		}
	}
	return 0;
}

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 2ms
memory: 7252kb

input:

3
2 5 2
1 1 1 2
2 3 2 5
2 5 2
1 1 1 3
2 3 2 5
3 3 3
1 1 1 2
3 1 3 2
1 3 2 3

output:

2 1
5 2
3 1
6 1
3 1
4 1
6 2

result:

ok 7 lines

Test #2:

score: 0
Accepted
time: 327ms
memory: 12416kb

input:

2130
2 5 2
1 1 1 2
2 3 2 5
2 5 2
1 1 1 3
2 3 2 5
3 3 3
1 1 1 2
3 1 3 2
1 3 2 3
3 100 51
1 2 2 2
1 4 2 4
1 6 2 6
1 8 2 8
1 10 2 10
1 12 2 12
1 14 2 14
1 16 2 16
1 18 2 18
1 20 2 20
1 22 2 22
1 24 2 24
1 26 2 26
1 28 2 28
1 30 2 30
1 32 2 32
1 34 2 34
1 36 2 36
1 38 2 38
1 40 2 40
1 42 2 42
1 44 2 44
...

output:

2 1
5 2
3 1
6 1
3 1
4 1
6 2
50 50
100 50
200 1
50 50
150 1
200 1
2 1
4 1
6 1
8 1
10 1
12 1
14 1
16 1
18 1
20 1
22 1
24 1
26 1
28 1
30 1
32 1
34 1
36 1
38 1
40 1
42 1
44 1
46 1
48 1
50 1
52 1
54 1
56 1
58 1
60 1
62 1
64 1
66 1
68 1
70 1
72 1
74 1
76 1
78 1
80 1
82 1
84 1
86 1
88 1
90 1
92 1
94 1
96 1...

result:

ok 355756 lines

Extra Test:

score: 0
Extra Test Passed