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Submission #1043496

# Submission time Handle Problem Language Result Execution time Memory
1043496 2024-08-04T10:09:53 Z vjudge1 Circle selection (APIO18_circle_selection) C++17
19 / 100
 1272 ms 82260 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long

bool inte(vector<int> c,vector<int> c1)
{
	int dis=(c[2]-c1[2])*(c[2]-c1[2])+(c[3]-c1[3])*(c[3]-c1[3]);
	return dis <= (c[0]+c1[0])*(c[0]+c1[0]);
}

signed main()
{
	int n;
	cin>>n;
	int r[n],x[n],y[n],ans[n]={};
	for (int i=0;i<n;i++)
		cin>>x[i]>>y[i]>>r[i];
	if (n<=5000)
	{
		set<vector<int>> se;
		set<int> rem;
		for (int i=0;i<n;i++)
		{
			se.insert({-r[i],i,x[i],y[i]});
			rem.insert(i);
		}
		while (!se.empty())
		{
			auto it=se.begin();
			vector<int> c=*it;c[0]*=-1;
			for (int i:rem)
				if (!ans[i] && inte(c,{r[i],i,x[i],y[i]}))
				{
					se.erase({-r[i],i,x[i],y[i]});
					ans[i]=c[1]+1;
				}
		}
	}
	else
	{
		int mx=-1e9,mn=-mx;
		for (int i=0;i<n;i++)
			mn=min(mn,y[i]),mx=max(mx,y[i]);
		if (!mn && !mx)
		{
			set<pair<int,int>> st,en,rem;
			for (int i=0;i<n;i++)
				st.insert({x[i]-r[i],i}),en.insert({x[i]+r[i],i}),rem.insert({-r[i],i});
			while (!rem.empty())
			{
				set<int> toer;
				auto p=*rem.begin();
				auto it=st.lower_bound({x[p.second]-r[p.second],0});
				auto it1=st.lower_bound({1+x[p.second]+r[p.second],0});
				while (it!=it1)
				{
					toer.insert((*it).second);
					it++;
				}
				it=en.lower_bound({x[p.second]-r[p.second],0});
				it1=en.lower_bound({x[p.second]+r[p.second]+1,0});
				while (it!=it1)
				{
					toer.insert((*it).second);
					it++;
				}
				for (int i:toer)
				{
					ans[i]=p.second+1;
					st.erase({x[i]-r[i],i}),en.erase({x[i]+r[i],i}),rem.erase({-r[i],i});
				}
			}
		}
		else
		{
			vector<vector<int>> vec;
			for (int i=0;i<n;i++)
				vec.push_back({y[i]+r[i],i,1}),vec.push_back({y[i]-r[i],i,0});
			sort(vec.begin(),vec.end());
			set<pair<int,int>> ms;
			while (!vec.empty())
			{
				vector<int> v=vec.back();
				vec.pop_back();
				if (v[2])
				{
					auto it=ms.insert({x[v[1]],v[1]}).first;
					if (it!=ms.begin())
					{
						it--;
						int id=(*it).second;
						if (inte({r[v[1]],0,x[v[1]],y[v[1]]},{r[id],0,x[id],y[id]}))
						{
							if (r[v[1]]>r[id] || (r[v[1]]==r[id] && v[1]<id))
								ans[v[1]]=ans[id]=v[1]+1;
							else
								ans[v[1]]=ans[id]=id+1;
						}
						it++;
					}
					it++;
					if (it!=ms.end())
					{
						int id=(*it).second;
						if (inte({r[v[1]],0,x[v[1]],y[v[1]]},{r[id],0,x[id],y[id]}))
						{
							if (r[v[1]]>r[id] || (r[v[1]]==r[id] && v[1]<id))
								ans[v[1]]=ans[id]=v[1]+1;
							else
								ans[v[1]]=ans[id]=id+1;
						}
					}
				}
				else
				{
					auto it=ms.find({x[v[1]],v[1]});
					if (it!=ms.begin())
					{
						it--;
						int id=(*it).second;
						it++,it++;
						if (it!=ms.end())
						{
							int id1=(*it).second;
							if (inte({r[id],0,x[id],y[id]},{r[id1],0,x[id1],y[id1]}))
							{
								if (r[id]>r[id1] || (r[id]==r[id1] && id<id1))
									ans[id]=ans[id1]=id+1;
								else
									ans[id]=ans[id1]=id1+1;
							}
						}
					}
					ms.erase({x[v[1]],v[1]});
				}
			}
		}
	}
	for (int i=0;i<n;i++)
		cout<<ans[i]<<' ';
	cout<<endl;
	
	return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 452 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 5 ms 1356 KB Output is correct
20 Correct 6 ms 1372 KB Output is correct
21 Correct 6 ms 1352 KB Output is correct
22 Correct 447 ms 1352 KB Output is correct
23 Correct 405 ms 1364 KB Output is correct
24 Correct 420 ms 1364 KB Output is correct
25 Correct 404 ms 1364 KB Output is correct
26 Correct 418 ms 1360 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1272 ms 82260 KB Output is correct
2 Correct 1079 ms 75088 KB Output is correct
3 Correct 1079 ms 79692 KB Output is correct
4 Correct 1161 ms 82260 KB Output is correct
5 Correct 813 ms 67908 KB Output is correct
6 Correct 803 ms 67924 KB Output is correct
7 Correct 778 ms 67920 KB Output is correct
8 Correct 838 ms 67916 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 119 ms 14848 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 365 ms 51440 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 452 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 5 ms 1356 KB Output is correct
20 Correct 6 ms 1372 KB Output is correct
21 Correct 6 ms 1352 KB Output is correct
22 Correct 447 ms 1352 KB Output is correct
23 Correct 405 ms 1364 KB Output is correct
24 Correct 420 ms 1364 KB Output is correct
25 Correct 404 ms 1364 KB Output is correct
26 Correct 418 ms 1360 KB Output is correct
27 Incorrect 18 ms 2064 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 452 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 5 ms 1356 KB Output is correct
20 Correct 6 ms 1372 KB Output is correct
21 Correct 6 ms 1352 KB Output is correct
22 Correct 447 ms 1352 KB Output is correct
23 Correct 405 ms 1364 KB Output is correct
24 Correct 420 ms 1364 KB Output is correct
25 Correct 404 ms 1364 KB Output is correct
26 Correct 418 ms 1360 KB Output is correct
27 Correct 1272 ms 82260 KB Output is correct
28 Correct 1079 ms 75088 KB Output is correct
29 Correct 1079 ms 79692 KB Output is correct
30 Correct 1161 ms 82260 KB Output is correct
31 Correct 813 ms 67908 KB Output is correct
32 Correct 803 ms 67924 KB Output is correct
33 Correct 778 ms 67920 KB Output is correct
34 Correct 838 ms 67916 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Incorrect 119 ms 14848 KB Output isn't correct
37 Halted 0 ms 0 KB -