This shows how to create and print a Tree class object.
#include <iostream>
#include <vector>
#include "../include/pruner.hpp"
int main () {
std::vector< unsigned int > source = {0u, 0u, 1u, 2u, 3u};
std::vector< unsigned int > target = {1u, 5u, 2u, 3u, 4u};
unsigned int res;
return 0;
}