比赛 2024国庆练习1 评测结果 AAAAAAAAAA
题目名称 混乱的齿轮 最终得分 100
用户昵称 ┭┮﹏┭┮ 运行时间 0.044 s
代码语言 C++ 内存使用 3.57 MiB
提交时间 2024-10-04 17:59:14
显示代码纯文本
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define fi first
#define in inline
#define se second
#define mp make_pair
#define pb push_back
const int N = 1100;

ll read(){
	ll x = 0,f = 1;char c = getchar();
	for(;c < '0' || c > '9';c = getchar())if(c == '-')f = -1;
	for(;c >= '0' && c <= '9';c = getchar())x = (x<<1) + (x<<3) + c-'0';
	return x * f;
}


int n,rt,ans;
int x[N],y[N],r[N],v[N],mx;
vector<int>e[N];

int dis(int i,int j){return (x[i] - x[j]) * (x[i] - x[j]) + (y[i] - y[j]) * (y[i] - y[j]);}
int main(){
	freopen("rollers.in","r",stdin);
	freopen("rollers.out","w",stdout);
	n = read();
	for(int i = 1;i <= n;i++){
		x[i] = read(),y[i] = read(),r[i] = read();
		if(!x[i] && !y[i])rt = i;
	}
	for(int i = 1;i <= n;i++)
		for(int j = 1;j <= n;j++)
			if(i != j && (r[i] + r[j]) * (r[i] + r[j]) >= dis(i,j))e[i].pb(j);
	queue<int>q;
	q.push(rt);
	while(!q.empty()){
		int x = q.front();q.pop();
		for(int y : e[x]){
			if(v[y])continue;
			ans = y;
			v[y] = 1;
			q.push(y);
		}
	}
	printf("%d %d\n",x[ans],y[ans]);

	return 0;

}