제출 #252472

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
252472		Saboon	원 고르기 (APIO18_circle_selection)	C++14	0 / 100	219 ms	11128 KiB

circle_selection

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn = 1e6 + 20;
const int inf = 1e9;

int c[maxn], r[maxn], p[maxn], pos[maxn], q[maxn];

ll dis(int x, int y, int X, int Y){
	return 1ll*(x-X)*(x-X) + 1ll*(y-Y)*(y-Y);
}

int x[maxn], y[maxn];

int main(){
	ios_base::sync_with_stdio(false);
	int n;
	cin >> n;
	for (int i = 1; i <= n; i++)
		cin >> x[i] >> y[i] >> r[i];

	for (int i = 1; i <= n; i++)
		p[i] = i, q[i] = i;
	sort(q+1, q+n+1, [](int a, int b){
		return x[a] < x[b];
	});

	for (int i = 1; i <= n; i++)
		pos[q[i]] = i;
	
	sort(p+1, p+n+1, [](int a, int b){
		if (r[a] != r[b])
			return r[a] > r[b];
		return a < b;
	});
	for (int za = 1; za <= n; za++){
		int i = p[za];
		if (c[pos[i]] != 0)
			continue;
		c[i] = i;
		for (int j = pos[i]+1; j <= n; j++){
			if (c[j] != 0 or dis(x[i], y[i], x[q[j]], y[q[j]]) > 1ll*(r[i]+r[q[j]])*(r[i]+r[q[j]]))
				break;
			c[j] = i;
		}
		for (int j = pos[i]-1; j >= 1; j--){
			if (c[j] != 0 or dis(x[i], y[i], x[q[j]], y[q[j]]) > 1ll*(r[i]+r[q[j]])*(r[i]+r[q[j]]))
				break;
			c[j] = i;
		}
	}
	for (int i = 1; i <= n; i++)
		cout << c[pos[i]] << " \n"[i == n];
}

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