题解 | #牛牛的金币#
牛牛的金币
http://www.nowcoder.com/practice/35d8e3e569dc49f2a1018d1dc9186998
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int x=sc.nextInt();
int y=sc.nextInt();
int x1=sc.nextInt();
int y1=sc.nextInt();
if(y+1==y1&&x==x1){
System.out.print('u');
}else if(y-1==y1&&x==x1){
System.out.print('d');
}else if(x+1==x1&&y==y1){
System.out.print('r');
}else if(x-1==x1&&y==y1){
System.out.print('l');
}
}
}
