Composition: "Has-a" Relationship

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Problem Statement

Implement a `Car` class that strictly contains an `Engine` class. The `Engine` class takes a `power` parameter. The `Car` class should instantiate the `Engine` inside its own constructor initialization list (strong lifecycle). Read an integer for power, instantiate the Car, and print the engine power.

Input Format

A single integer representing engine power.

Output Format

Print 'Engine: [power]HP' and on the next line 'Car created'.

Constraints

power > 0

Sample Input

Sample Output

Engine: 400HP
Car created

Explanation

Composition represents a strict 'has-a' relationship where the child object (Engine) cannot exist without the parent object (Car).

Starter Code

#include <iostream>

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

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

int main() {
    // Read power, instantiate Car, and print details
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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