Question
#include <iostream>
#include <vector>
using namespace std;
class Component
{
public:
virtual void traverse() = 0;
};
class Leaf: public Component
{
int value;
public:
Leaf(int val)
{
value = val;
}
void traverse()
{
cout << value << ' ';
}
};
class Composite: public Component
{
vector < Component * > children;
public:
void add(Component *ele)
{
children.push_back(ele);
}
void traverse()
{
for (int i = 0; i < children.size(); i++)
children[i]->traverse();
}
};
int main()
{
Composite containers[4];
for (int i = 0; i < 4; i++)
for (int j = 0; j < 3; j++)
containers[i].add(new Leaf(i *3+j));
for (int k = 1; k < 4; k++)
containers[0].add(&(containers[k]));
for (int p = 0; p < 4; p++)
{
containers[p].traverse();
}
}a.
345
b.
678
c.
901
d.
None of the mentioned
Posted under Object Oriented Programming Using C++
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