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Submission #49970

# Submission time Handle Problem Language Result Execution time Memory
49970 2018-06-05T15:38:33 Z zetapi Circle selection (APIO18_circle_selection) C++14
12 / 100
 1453 ms 56824 KB 
#include <bits/stdc++.h>
using namespace std;

#define pb  push_back
#define mp  make_pair
#define int long long
#define itr ::iterator 

typedef pair<int,int>  pii;

const int MAX=4e5;
const int INF=1e12;

multiset<pii> st;
multiset<pii> itr it;

priority_queue<pii> pq;

pii cur;

int N,lol,X[MAX],Y[MAX],R[MAX],mark[MAX],par[MAX];

signed main()
{
	ios_base::sync_with_stdio(false);
	/*cin.tie(0);
	cout.tie(0);*/

	cin>>N;
	for(int A=1;A<=N;A++)
	{
		cin>>X[A]>>Y[A]>>R[A];
		X[A]=X[A]-R[A];
		Y[A]=X[A]+R[A]+R[A];
		pq.push(mp(R[A],-A));
	}
	for(int A=1;A<=N;A++)
	{
		st.insert(mp(X[A],A));
		st.insert(mp(Y[A],A));
	}
	while(!pq.empty())
	{
		cur=pq.top();
		pq.pop();
		cur.second*=-1;
		if(mark[cur.second])
			continue;
		par[cur.second]=cur.second;
		st.erase(st.find(mp(X[cur.second],cur.second)));
		st.erase(st.find(mp(Y[cur.second],cur.second)));
		while(true)
		{
			if(st.empty())
				break;
			it=st.lower_bound(mp(X[cur.second],-INF));
			if(it==st.end())
				break;
			if(X[it->second]>Y[cur.second])
				break;
			mark[it->second]=1;
			par[it->second]=cur.second;
			lol=it->second;
			st.erase(st.find(mp(X[lol],lol)));
			st.erase(st.find(mp(Y[lol],lol)));
		}
	}
	for(int A=1;A<=N;A++)
		cout<<par[A]<<" ";
	return 0;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 428 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1291 ms 56612 KB Output is correct
2 Correct 1267 ms 56612 KB Output is correct
3 Correct 1416 ms 56616 KB Output is correct
4 Correct 1453 ms 56824 KB Output is correct
5 Correct 1067 ms 56824 KB Output is correct
6 Correct 1075 ms 56824 KB Output is correct
7 Correct 1071 ms 56824 KB Output is correct
8 Correct 1032 ms 56824 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 56824 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 1043 ms 56824 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 428 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 428 KB Output isn't correct
4 Halted 0 ms 0 KB -