import java.text.DecimalFormat;
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import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class WalkDistance {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
for (int i = 0; i n; i++) {
String order = in.next();
System.out.println(new DecimalFormat("0.00").format(calDistance(order)));
}
in.close();
}
private static float calDistance(String order) {
char[] orderChar = order.toCharArray();
ListString orderList = new ArrayListString();
int num = 0;
for (int i = 0, len = orderChar.length; i len; i++) {
if (orderChar[i] = '0' orderChar[i] = '9') {
num++;
} else {
if (num == 0) {
orderList.add(String.valueOf(orderChar[i]));
} else {
StringBuffer sb = new StringBuffer();
for (int j = num; j 0; j--) {
sb.append(String.valueOf(orderChar[i - j]));
}
orderList.add(sb.toString());
orderList.add(String.valueOf(orderChar[i]));
num = 0;
}
}
if (i == len - 1 num != 0) {
StringBuffer sb = new StringBuffer();
for (int j = num - 1; j = 0; j--) {
sb.append(String.valueOf(orderChar[i - j]));
}
orderList.add(sb.toString());
}
}
Point curPoint = new Point(0, 0, 90);
for (int i = 0, len = orderList.size(); i len; i++) {
if ("R".equals(orderList.get(i))) {
curPoint.angle = (curPoint.angle - 90 + 360) % 360;
} else if ("L".equals(orderList.get(i))) {
curPoint.angle = (curPoint.angle + 90) % 360;
} else {
curPoint.setLocation(curPoint, orderList.get(i));
}
}
return curPoint.getDis();
}
static class Point {
private int x;
private int y;
private int angle;
private float dis;
public Point(int x, int y, int angle) {
this.x = x;
this.y = y;
this.angle = angle;
this.dis = (float) 0;
}
public void setLocation(Point point, String distance) {
if (point.angle == 0) {
point.x += Integer.valueOf(distance);
} else if (point.angle == 90) {
point.y += Integer.valueOf(distance);
} else if (point.angle == 180) {
point.x -= Integer.valueOf(distance);
} else {
point.y -= Integer.valueOf(distance);
}
}
public float getDis() {
return (float) Math.sqrt(this.x * this.x + this.y * this.y);
}
}
}
其实卡雷尔你不怎么需要知道他的概念，他只是让你知道什么是程序指令，是帮助你进入JAVA的东西。 ~
运行啊，点击那个奔跑的人形状。不过先要导入Assignment，点击import
projects，选择Assignment路径。慢慢摸索一下，应该可以的。
