依舊是java 90分 已經不知道錯誤

過路的大神知道錯誤請指出

思路：

這道題參考了網上的部落格，思路是先把路徑合併，然後消掉不規範的路徑即可。

一開始腦子抽了，以為要構建連結串列，我也不知道怎麼想的。

程式碼：

	

// java

import java.util.Scanner;


public class Main{

    private static Scanner cin;
    public static void main(String[] args) {
        cin = new Scanner(System.in);
        int n = cin.nextInt();
        String local = cin.next();
        if(local.charAt(local.length()-1) != '/')
            local = local + "/";
       // System.out.println("local = " + local);
        while (n-->0){
            String path = cin.next();
            if(path.charAt(0) != '/')
                path = local + path;

            //  刪掉多個///
            while (path.contains("//")){
                path = path.replaceAll("//","/");
            }
           // 刪掉 ./
            while(path.contains("/./"))
                path = path.replaceAll("/./","/");

            // 處理 /../的情況
            while (path.contains("/../")){
                int pos = path.indexOf("/../");
                if(pos == 0){
                    // 根目錄下的
                    path = path.substring(3);
                }else{
                    int npos = path.lastIndexOf("/",pos-1);
//                    System.out.println(path);
//                    System.out.println("substr: "+ path.substring(npos,pos+3));
//                    System.out.println("npos: " + npos + " pos " + (pos+3) );
                    // substring 不取尾！
                    path = path.replaceAll(path.substring(npos,pos+4),"/");
                }
            }
            int len = path.length();
            if( len > 1 && path.charAt(len-1)=='/'){
                path = path.substring(0,len-1);
            }
            System.out.println(path);
        }
    }


}


// c++

#include <iostream>
#include <string>
using namespace std;

int main(){
	int num;
	string curDir;
	cin >> num >> curDir;
	getchar();
	for (int i = 0; i<num; i++){
		string line;
		getline(cin, line);
		int pos;

		// 添加當前目錄
		if (line[0] != '/'){
			line = curDir + "/" + line;
		}
		if (line.size() == 0){
			line = curDir;
		}

		// 除去多個///
		while ((pos = line.find("//")) != -1){
			int count = 2;
			while (line[pos + count] == '/'){
				count++;
			}
			line.erase(pos, count - 1);
		}

		// 除去../
		while ((pos = line.find("/../")) != -1){
			if (pos == 0){
				line.erase(pos + 1, 3);
			}
			else{
				int spos;
				spos = line.rfind("/", pos - 1);
				line.erase(spos, pos - spos + 3);
			}
		}

		// 除去./
		while ((pos = line.find("/./")) != -1){
			line.erase(pos + 1, 2);
		}
		// 除去最後一個/
		if (line.size()>1 && line[line.size() - 1] == '/')
			line.erase(line.size() - 1);

		cout << line << endl;
	}
	return 0;
}