Question

C++ Question 2:

Create a dynamic jagged 2-d array of vehicle structs that holds an array of vehicles for different people. You will read the number of people and number of vehicles for each person from the user. Hint: Think about why you need a pointer for the num_vehicles.

#include <iostream>

using namespace std;

int main() {

int num_people, *num_vehicles;

struct vehicle **v;

cout << “How many people? ”;

cin >> num_people;

}

Answer 1

#include <iostream>

using namespace std;

struct vehicle{

};

int main() {

int num_people, *num_vehicles;

num_vehicles = new int;

struct vehicle **v;

cout << "How many people? ";

cin >> num_people;

v = new vehicle*[num_people];

for(int i=0; i<num_people; i++){

cout<<"How many vehicles for people "<<(i+1)<<" ? ";

cin>>*num_vehicles;

v[i] = new vehicle[*num_vehicles];

}

//free memory

for(int i=0; i<num_people; i++){

delete[] v[i];

}

delete v;

}

Here I created 2d array with dynamically.

Let me know if you have any clarifications. Thank you...