oj.uz

Submission #54092

# Submission time Handle Problem Language Result Execution time Memory
54092 2018-07-02T10:10:21 Z Bodo171 Circle selection (APIO18_circle_selection) C++14
7 / 100
 155 ms 7048 KB 
#include <iostream>
#include <fstream>
#include <algorithm>
#include <set>
using namespace std;
const int nmax=100005;
pair<int,int>  v[nmax];
set< pair<int,int> > s;
set< pair<int,int> >::iterator it1,it2;
long long x[nmax],y[nmax],r[nmax];
int tt[nmax];
int n,i,j,ind;
bool ok(int A,int B)
{
    return (1LL*(x[A]-x[B])*(x[A]-x[B])+1LL*(y[A]-y[B])*(y[A]-y[B])<=1LL*(r[A]+r[B])*(r[A]+r[B]));
}
bool comp(pair<int,int> unu,pair<int,int> doi)
{
    if(unu.first==doi.first) return unu.second<doi.second;
    return unu.first>doi.first;
}
int main()
{
    //freopen("data.in","r",stdin);
    cin>>n;
    bool zr=1;
    for(i=1;i<=n;i++)
    {
        cin>>x[i]>>y[i]>>r[i];
        v[i].first=r[i];
        v[i].second=i;
        if(y[i]!=0)
        {
            zr=0;
        }
    }
    if(n<=5000)
    {
        sort(v+1,v+n+1,comp);
        for(i=1;i<=n;i++)
            if(!tt[v[i].second])
        {
            tt[v[i].second]=v[i].second;
            for(j=i+1;j<=n;j++)
            {
                if(ok(v[i].second,v[j].second)&&(!tt[v[j].second]))
                    tt[v[j].second]=v[i].second;
            }
        }
        for(i=1;i<=n;i++)
            cout<<tt[i]<<' ';
        return 0;
    }
    if(zr)
    {
        int cap1,cap2;
        sort(v+1,v+n+1,comp);
        for(i=1;i<=n;i++)
        {
            cap1=x[i]-r[i];cap2=x[i]+r[i];
            s.insert({cap1,i});
            s.insert({cap2,i});
        }
        bool ok;
        for(i=1;i<=n;i++)
            if(!tt[v[i].second])
        {
            ind=v[i].second;tt[ind]=ind;
            cap1=x[ind]-r[ind];
            it1=s.lower_bound({cap1,0});ok=1;
            while((!s.empty())&&ok&&it1!=s.end())
            {
                it2=it1;it2++;
                if((*it1).first<=x[ind]+r[ind]&&(!tt[(*it1).second]))
                {
                    tt[(*it1).second]=ind;
                }
                s.erase(it1);
                if(it2==s.end()||((*it2).first>x[ind]+r[ind]))
                    ok=0;
                it1=it2;
            }
        }
        for(i=1;i<=n;i++)
            cout<<tt[i]<<' ';
        return 0;
    }
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 3 ms 484 KB Output is correct
3 Correct 3 ms 484 KB Output is correct
4 Correct 2 ms 484 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 3 ms 536 KB Output is correct
7 Correct 3 ms 536 KB Output is correct
8 Correct 2 ms 624 KB Output is correct
9 Correct 2 ms 624 KB Output is correct
10 Correct 2 ms 624 KB Output is correct
11 Correct 2 ms 624 KB Output is correct
12 Correct 2 ms 624 KB Output is correct
13 Correct 2 ms 644 KB Output is correct
14 Correct 2 ms 644 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 4 ms 724 KB Output is correct
18 Correct 4 ms 724 KB Output is correct
19 Correct 11 ms 808 KB Output is correct
20 Correct 16 ms 808 KB Output is correct
21 Correct 11 ms 808 KB Output is correct
22 Correct 45 ms 808 KB Output is correct
23 Correct 54 ms 940 KB Output is correct
24 Correct 46 ms 940 KB Output is correct
25 Correct 44 ms 940 KB Output is correct
26 Correct 57 ms 940 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 123 ms 7032 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7032 KB Output is correct
2 Incorrect 142 ms 7032 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 155 ms 7048 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 3 ms 484 KB Output is correct
3 Correct 3 ms 484 KB Output is correct
4 Correct 2 ms 484 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 3 ms 536 KB Output is correct
7 Correct 3 ms 536 KB Output is correct
8 Correct 2 ms 624 KB Output is correct
9 Correct 2 ms 624 KB Output is correct
10 Correct 2 ms 624 KB Output is correct
11 Correct 2 ms 624 KB Output is correct
12 Correct 2 ms 624 KB Output is correct
13 Correct 2 ms 644 KB Output is correct
14 Correct 2 ms 644 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 4 ms 724 KB Output is correct
18 Correct 4 ms 724 KB Output is correct
19 Correct 11 ms 808 KB Output is correct
20 Correct 16 ms 808 KB Output is correct
21 Correct 11 ms 808 KB Output is correct
22 Correct 45 ms 808 KB Output is correct
23 Correct 54 ms 940 KB Output is correct
24 Correct 46 ms 940 KB Output is correct
25 Correct 44 ms 940 KB Output is correct
26 Correct 57 ms 940 KB Output is correct
27 Incorrect 18 ms 7048 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 3 ms 484 KB Output is correct
3 Correct 3 ms 484 KB Output is correct
4 Correct 2 ms 484 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 3 ms 536 KB Output is correct
7 Correct 3 ms 536 KB Output is correct
8 Correct 2 ms 624 KB Output is correct
9 Correct 2 ms 624 KB Output is correct
10 Correct 2 ms 624 KB Output is correct
11 Correct 2 ms 624 KB Output is correct
12 Correct 2 ms 624 KB Output is correct
13 Correct 2 ms 644 KB Output is correct
14 Correct 2 ms 644 KB Output is correct
15 Correct 2 ms 724 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 4 ms 724 KB Output is correct
18 Correct 4 ms 724 KB Output is correct
19 Correct 11 ms 808 KB Output is correct
20 Correct 16 ms 808 KB Output is correct
21 Correct 11 ms 808 KB Output is correct
22 Correct 45 ms 808 KB Output is correct
23 Correct 54 ms 940 KB Output is correct
24 Correct 46 ms 940 KB Output is correct
25 Correct 44 ms 940 KB Output is correct
26 Correct 57 ms 940 KB Output is correct
27 Runtime error 123 ms 7032 KB Execution killed with signal 11 (could be triggered by violating memory limits)
28 Halted 0 ms 0 KB -