HJ17 坐标移动

末蓝、 2024-03-27 16:12 48阅读 0赞

> [牛客华为机试题库【题号 HJ开头】（重点看）][HJ]  
> [牛客在线编程算法篇【题号NC开头】][NC]  
> [剑指offer【题号 JZ开头】][offer_ JZ]  
> [力扣][Link 1]

### 1）[原题链接][Link 2] ###

### 2）已有题解 ###

### 3）代码 ###

package string;
    
    import java.io.BufferedReader;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.util.Arrays;
    import java.util.List;
    import java.util.stream.Collectors;
    
    import static java.lang.Integer.parseInt;
    import static java.lang.System.in;
    
    /**
     * HJ17 坐标移动
     */
    public class HJ17MovePoint {
        
        public static void main(String[] args) throws IOException {
        
            BufferedReader bf = new BufferedReader(new InputStreamReader(in));
            String str = bf.readLine();
            bf.close();
    
            List<String> strs = Arrays.stream(str.split(";")).collect(Collectors.toList());
    
            List<String> actions = strs.stream()
                    .filter(a -> a != null && a.length() > 0)
                    .filter(word -> word.matches("[WASD][0-9]{1,2}"))
                    .collect(Collectors.toList());
    
            int[] location = {
        0, 0};
            for (String action : actions) {
        
                String act = action.substring(0, 1);
                int actStep = parseInt(action.substring(1));
                if ("A".equals(act)) {
        
                    location[0] = location[0] - actStep;
                    location[1] = location[1];
                } else if ("D".equals(act)) {
        
                    location[0] = location[0] + actStep;
                    location[1] = location[1];
                } else if ("W".equals(act)) {
        
                    location[0] = location[0];
                    location[1] = location[1] + actStep;
                } else if ("S".equals(act)) {
        
                    location[0] = location[0];
                    location[1] = location[1] - actStep;
                }
            }
            String res = Arrays.stream(location).mapToObj(String::valueOf).collect(Collectors.joining(","));
            System.out.println(res);
        }
    }

[HJ]: https://www.nowcoder.com/exam/oj/ta?tpId=37
[NC]: https://www.nowcoder.com/exam/oj
[offer_ JZ]: https://www.nowcoder.com/exam/oj/ta?page=1&tpId=13&type=13
[Link 1]: https://leetcode.cn/problemset/all/
[Link 2]: https://www.nowcoder.com/practice/119bcca3befb405fbe58abe9c532eb29?tpId=37&tqId=21240&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=/exam/oj/ta?page=1&tpId=37&type=37&difficulty=undefined&judgeStatus=undefined&tags=&title=