Handling Memory Leaks in Classes

Medium Dynamic Memory & Smart Pointers

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Problem Statement

Create a `Resource` class that allocates a dynamic integer internally during construction: `data = new int(val);`. Provide a destructor that explicitly runs `delete data;` and prints ‘Cleaned’. Instantiate it in a local scope to trigger the destructor.

Input Format

A single integer.

Output Format

Print 'Data: [val]' inside the scope, then 'Cleaned' when destroyed.

Constraints

Must utilize a destructor to free memory.

Sample Input

Sample Output

Data: 10
Cleaned

Explanation

Classes that manage dynamic resources MUST clean up their own memory in the destructor to prevent leaks when the object falls out of scope.

Starter Code

#include <iostream>

class Resource {
public:
    int* data;
    // Write your constructor and destructor here
};

int main() {
    int val;
    if (std::cin >> val) {
        {
            // Instantiate Resource, print data
        }
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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