solution.cpp

#include <bits/stdc++.h>
#define sqr(a) (a) * (a)
using namespace std;

const int MAXN = 1000000;

int n, c1, c2;
int x[MAXN+10], y[MAXN+10], r[MAXN+10];
double dist;

int main(){
	cin >> n;
	for(int i = 0; i < n; i++){
		cin >> x[i] >> y[i] >> r[i];
	}
	cin >> c1 >> c2;
	c1--;
	c2--;
	dist =  sqrt(sqr(x[c1] - x[c2]) + sqr(y[c1] - y[c2]));
	if(r[c1] + r[c2] >= dist){
		cout << "YES" << endl;
	}else{
		cout << "NO" << endl;
	}
	return 0;
}