File System Directory Simulator

Hard Applied C++ OOP Mini Projects PRO

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Problem Statement

Model a hierarchical file system using C++ classes (`Node`, `Directory`, `File`). Support `mkdir name` and `touch name` inside the root directory, then print the sorted list of item names.

Input Format

Line 1: N commands (`mkdir x` or `touch y`).

Output Format

Print sorted space-separated names of created items.

Constraints

1 <= N <= 20

Sample Input

3
mkdir docs
touch note.txt
mkdir bin

Sample Output

bin docs note.txt

Explanation

Items created in the root directory are sorted alphabetically.

Starter Code

#include <iostream>
#include <string>
#include <map>

class Node {
public:
    // Write your code here
};

class Directory : public Node {
public:
    // Write your code here
};

class File : public Node {
public:
    // Write your code here
};

int main() {
    // Implement I/O logic here
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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