import java.util.*; public class Main { public static void main(String[] args) { int n,c,d; long x,y; Scanner sc = new Scanner(System.in); n = sc.nextInt(); d = sc.nextInt(); c=0; for(int i=0; i<n; i++) { x = sc.nextInt(); y = sc.nextInt(); double dist = Math.sqrt( x*x + y*y ); if(dist <= d) c++; } System.out.println(c); } }
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz