C :

#include<stdio.h>
#include<math.h>
int p(float x,float y,float r,float a,float b)
{
//	if(r==0)
//		return 0;
	if((x-a)*(x-a)+(y-b)*(y-b)<=r*r)
		return 1;
	else
		return 0;
}
int main()
{
	float s[110][3],a,b;
	int i,j,flag,n;
	while(scanf("%d",&n),n)
	{
		flag=0;
		for(i=0;i<n;i++)
			scanf("%f%f%f",&s[i][0],&s[i][1],&s[i][2]);
		scanf("%f%f",&a,&b);
		for(i=0;i<n;i++)
			if(p(s[i][0],s[i][1],s[i][2],a,b))
			{
				puts("YES");
				flag=1;
				break;
			}
		if(flag==0)
			puts("NO");
	}
}

C++ :

#include <stdio.h>

int main() {
	int n, i;
	double x[100], y[100], r[100], a, b;
	while (scanf("%d", &n) != EOF, n) {
		for (i = 0; i < n; i++)
			scanf("%lf%lf%lf", &x[i], &y[i], &r[i]);
		scanf("%lf%lf", &a, &b);
		for (i = 0; i < n; i++) {
			if ((a - x[i]) * (a - x[i]) + (b - y[i]) * (b - y[i]) <= r[i]
					* r[i])
				break;
		}
		puts(i < n ? "YES" : "NO");
	}
	return 0;
}

Java :

import java.util.Scanner;

public class Main {
   private static Scanner s = new Scanner(System.in) ;
   
   public static void main(String[] args) {
	  while(true){
		  int n = s.nextInt() ;
		  if(n==0){
			  break ;
		  }
		  A a[] = new A[n] ;
		  for (int i = 0; i < n; i++) {
			double x = s.nextDouble() ;
			double y = s.nextDouble() ;
			double r = s.nextDouble() ;
			a[i] = new A(x, y, r) ;
		  }
		  
		  double x1 = s.nextDouble() ;
		  double y1 = s.nextDouble() ;
		  int sum = 0 ;
		  for (int i = 0; i < a.length; i++) {
			  if((a[i].x-x1)*(a[i].x-x1)+(a[i].y-y1)*(a[i].y-y1)<=a[i].r*a[i].r){
				  sum++ ;
			  }
		  }
		  if(sum>0){
			  System.out.println("YES") ;
		  }else {
			  System.out.println("NO") ;
		  }
	  }
   }
}

class A{
	double x ;
	double y ;
	double r ;
	public A(double x, double y, double r) {
		this.x = x;
		this.y = y;
		this.r = r;
	}
	
}