#include <iostream>
using namespace std;
 
void foo(unsigned int height, unsigned int width, unsigned int depth, const int& value) { 
 
   std::cout << "size of the matrix: " << height * width * depth << '\n';
   int* _3D_matrix = nullptr;
   try {
       _3D_matrix = new int[height * width * depth];
            for (int z = 0; z < depth; z++) {
                for (int j = 0; j < height; j++) {
                    for (int k = 0; k < width; k++) {
                    	auto index = j * height * depth + k * depth + z;
                    	std::cout << "index at: " << index << '\n';
                        _3D_matrix[index] = value; 
                    }
                }
            }
   }
    catch(...) {
        delete[] _3D_matrix;
        throw;
    }
 
}
int main() {
	foo(2, 4, 8, 42);
	// your code goes here
	return 0;
}

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