CCF|路径解析|Java

import java.util.Scanner;

public class Main

{

public static void main(String[] args)

{

Scanner in=new Scanner(System.in);

int p=Integer.parseInt(in.nextLine().trim());

String inputPath=in.nextLine().trim();

if(inputPath.length()==1)

{

inputPath="";

}

StringBuilder[] result=new StringBuilder[p];

for(int i=0;i<p;i++)

{

String path=in.nextLine().trim();

        if(path.length()==0)
        {
            if(inputPath.length()==0)
            {
                result[i] = new StringBuilder("/");
            }
            else
                result[i]=new StringBuilder(inputPath);
            continue;
        }
        path=path.replaceAll("/{2,}","/");
        if(path.length()==1&&path.charAt(0)=='/')
        {
            result[i]=new StringBuilder("/");
            continue;
        }

        if (path.charAt(0)!='/')
        {
            path=inputPath+"/"+path;
        }
        if(path.charAt(path.length()-1)=='/')
        {
            path=path.substring(0,path.length()-1);
        }
        String temp="";
        int t=0;
        String[] path1=path.substring(1).split("/");
        for(int j=path1.length-1;j>=0;j--)
        {
            if(path1[j].equals("."))
            {
                continue;
            }
            else if(path1[j].equals(".."))
            {
                t++;
            }
            else if(t>0)
            {
                t--;
            }
            else
            {
                temp="/"+path1[j]+temp;
            }
        }
        result[i]= new StringBuilder(temp);
    }
    in.close();
    for (int i=0;i<p;i++)
    {
        System.out.println(result[i].toString());
    }
}

}