#include <fstream>
#include <iostream>
#include <set>
#include <sstream>
#include <string>
#include <vector>

int main()
{
	std::ifstream ifs("data.txt");
	if(!ifs.is_open())
	{
		std::cerr << "Missing data.txt." << std::endl;
		return -1;
	}

	unsigned long total = 0;
	unsigned long total_pt2 = 0;

	std::vector<std::vector<long>> data;

	for(std::string line; std::getline(ifs, line); )
	{
		if(line == "")
			continue;

		// add a row for this line:
		data.push_back({});

		std::istringstream input(line);
		// for each value in the line:
		for(std::string value; std::getline(input, value, ' '); )
		{
			try {
				// add it to the row
				data.back().push_back(std::atoi(value.c_str()));
			} catch (const std::exception &e) {
				break;
			}
		}
	}

	// DEBUG:
	for(auto row : data)
	{
		for(auto col : row)
			std::cout << col << ", ";
		std::cout << std::endl;
	}

	std::cout << "    Total: " <<     total << std::endl;
	std::cout << "PT2 Total: " << total_pt2 << std::endl;

	return 0;
}