utils

#include <vector>
#define newl '\n'

template <class T>
void print_vector(std::vector<T> v)
{
    std::cout << "Size: " << v.size() << newl;
    for (int i = 0; i < v.size(); i++) std::cout << v[i] << ' ';
    std::cout << newl;
}
template <class T>
void print_vector_hex(std::vector<T> v)
{
    std::cout << "Size: " << v.size() << newl << std::hex;
    for (int i = 0; i < v.size(); i++) std::cout << v[i] << ' ';
    std::cout << std::dec << newl;
}

std::vector<std::string> explode(const std::string &delimiter, const std::string &str)
{
    using namespace std;
    vector<string> arr;

    int strleng = str.length();
    int delleng = delimiter.length();
    if (delleng == 0)
        return arr; // no change

    int i = 0;
    int k = 0;
    while (i < strleng)
    {
        int j = 0;
        while (i + j < strleng && j < delleng && str[i + j] == delimiter[j])
            j++;
        if (j == delleng) // found delimiter
        {
            arr.push_back(str.substr(k, i - k));
            i += delleng;
            k = i;
        }
        else
        {
            i++;
        }
    }
    arr.push_back(str.substr(k, i - k));
    return arr;
}