Submission #287351

#	Time	Username	Problem	Language	Result	Execution time	Memory
287351		ScarletS	Circle selection (APIO18_circle_selection)	C++17	7 / 100	45 ms	1152 KiB

circle_selection

#include <bits/stdc++.h>
#define ll long long
#define sz(x) (int)(x).size();
#define pii pair<ll,ll>
#define f first
#define s second
using namespace std;

ll sq(ll a)
{
	return a*a;
}

int ans[5001];
pair<pii,pii> p[5000];

int main()
{
	int n;
	cin>>n;
	for (int i=0;i<n;++i)
	{
		cin>>p[i].s.f>>p[i].s.s>>p[i].f.f;
		p[i].f.s=-(i+1);
	}
	sort(p,p+n,greater<pair<pii,pii>>());
	for (int i=0;i<n;++i)
	{
		if (ans[-(p[i].f.s)])
			continue;
		for (int j=i;j<n;++j)
			if (!ans[-(p[j].f.s)])
				if (sq(p[i].s.f-p[j].s.f)+sq(p[i].s.s-p[j].s.s)<=sq(p[i].f.f+p[j].f.f))
					ans[-(p[j].f.s)]=-(p[i].f.s);
	}
	for (int i=1;i<=n;++i)
		cout<<ans[i]<<" ";
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 12
• Subtask 3: 0 / 15
• Subtask 4: 0 / 23
• Subtask 5: 0 / 30
• Subtask 6: 0 / 13