浙大PAT甲级1008（JAVA）

```java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * @program: suanfa
 * @description:
 * @author: 国宇航
 * @create: 2019-12-31 11:07
 **/
public class onezerozeroeight {
    public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        //当前要到的楼层
        int cur = 0;
        //当前停留的楼层
        int stay = 0;
        int sum = 0;
        String[] split = bufferedReader.readLine().split(" ");
        for (int i = 0;i<Integer.parseInt(split[0]);i++){
             cur = Integer.parseInt(split[i+1]);
             if(stay<=cur){
                 sum+=(cur-stay)*6+5;
             }else {
                 sum+=(stay-cur)*4+5;
             }
             stay = cur;
        }
        System.out.println(sum);
    }
}

来源：CSDN

作者：国哥帅过吴彦祖

链接：https://blog.csdn.net/xiaohuo0930/article/details/103780110