题解 | #坐标移动#
坐标移动
https://www.nowcoder.com/practice/119bcca3befb405fbe58abe9c532eb29
import java.util.ArrayList; import java.util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); // 注意 hasNext 和 ha sNextLine 的区别 String str = in.nextLine(); int x = 0, y = 0; for (String s : str.split(";")) { if (s.length() <= 1 || s.length() > 3) { continue; } if (s.charAt(0) != 'A' && s.charAt(0) != 'W' && s.charAt(0) != 'S' && s.charAt(0) != 'D') { continue; } if (s.length() == 2) { if(s.charAt(1) > '9' || s.charAt(1) < '0'){ continue; } } if (s.length() == 3) { if (s.charAt(1) > '9' || s.charAt(0) < '0') { continue; } if (s.charAt(2) > '9' || s.charAt(2) < '0') { continue; } } int dis =Integer.parseInt(s.substring(1)); switch(s.charAt(0)){ case 'A': x-=dis; break; case 'D': x+=dis; break; case 'W': y+=dis; break; case 'S': y-=dis; break; } } System.out.printf(x+","+y); } }