import java.util.Scanner; public class PO { public static void main(String[] args){ Scanner in=new Scanner(System.in); int n=in.nextInt();//居民数 int[] y=new int[n]; int[] x=new int[n];//居民坐标 int maxx=100001,minx=-100001,maxy=100001,miny=-100001; for(int i=0;i<n;i++){ x[i]=in.nextInt(); y[i]=in.nextInt(); if(x[i]>maxx){ maxx=x[i]; } if(x[i]<minx){ minx=x[i]; } if(y[i]>maxy){
Amnesia