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 `__init__` method (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

class Engine:
    # Define __init__ with power
    pass

class Car:
    # Define __init__ to instantiate Engine internally
    pass

if __name__ == '__main__':
    power = int(input().strip())
    # Instantiate Car and print details
    pass

Limits

Time Limit: 1s
Memory Limit: 256MB

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