Problem $2.(50$ pts$)$ ou are given a task to implement a hierarchical data structure representing cities, regions, countries, and continents. Your implementation should allow you to create instances of these entities, link them appropriately, and print specific hierarchical information.

The structures and relationships are as follows:

Each City belongs to a Region.

Each Region contains multiple Cities and belongs to a Country.

Each Country contains multiple Regions and belongs to one or more Continents.

Each Continent contains one or more Countries.

Here are the specific requirements:

Define structures for City, Region, Country, and Continent.

City should have the variables below:

char name $[50]$ City name

int population $$ Population of the city

Region should have the variables below:

char name $[50]$ Region name

int population $$ Total population of the cities in the region

int num$\_$cities $$ Number of cities that the region has

Country should have the variables below:

char name $[50]$ Country name

int population $$ Total population of the cities in the country

int num$\_$regions $$ Number of regions that the country has

int num$\_$continents $$ Number of continents that the country has

Continent should have the variables below:

char name $[50]$ Continent name

int population $$ Total population of the cities in the continent int num$\_$countries $$ Number of countries that the continent has

Create instances of City, Region, Country, and Continent and establish their relationships.

Continent should point to Country.

$4$

Country should point to Continent and Region.

Region should point to Country and City.

City should point to Region.

Populate the data:

Include two continents, named "Europe" and "Asia".

Asia contains one country, "Turkey".

Europe contains two countries, "Turkey" and "France".

France has multiple regions, "Ile$-$de$-$France" and "Nouvelle$-$Aquitaine".

Turkey has multiple regions, "Marmara" and "Ege".

Paris and Yvelines $($two cities in France$)$ are in Ile$-$de$-$France, and the corresponding populations are $2161000$ and $1437000,$ respectively.

Bordeaux $($a city in France with $249712$ population$)$ is in Nouvelle$-$Aquitaine.

$$zmir $($population: $4367000)$ and Manisa $($population: $1430000)$ are in Ege region. Turkey.

$$stanbul $($population: $15460000)$ is in Marmara region, Turkey.

Ensure proper memory allocation for dynamic data.

Name the variables so that the program will be able to print the following hierarchical information: