tforgione

#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>

template<typename T>
class MultidimArray {
    public:
        MultidimArray(std::initializer_list<std::size_t> sizes) : sizes{sizes}, data(
            std::accumulate(std::begin(sizes), std::end(sizes), static_cast<std::size_t>(1), [](std::size_t i, std::size_t j) { return i * j; })