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#include <fstream>
#include <iostream>
#include <string>
#include <tuple>
#include <vector>
using namespace std;
auto
read_file(string_view filename)
{
fstream input{ filename };
vector<tuple<int, int, int>> puzzle;
for ( string line; getline(input, line); ) {
int w, h, l;
if ( sscanf(line.c_str(), "%dx%dx%d", &w, &h, &l) == 3 ) {
puzzle.emplace_back(w, h, l);
}
}
return puzzle;
}
void
part1(const vector<tuple<int, int, int>>& puzzle)
{
int sum = 0;
for ( const auto& [w, h, l]: puzzle ) {
auto side1 = l * w;
auto side2 = w * h;
auto side3 = h * l;
sum += 2 * side1 + 2 * side2 + 2 * side3 + min({ side1, side2, side3 });
}
cout << sum << endl;
}
void
part2(const vector<tuple<int, int, int>>& puzzle)
{
int sum = 0;
for ( const auto& [w, h, l]: puzzle ) {
auto side1 = 2 * l;
auto side2 = 2 * w;
auto side3 = 2 * h;
sum += side1 + side2 + side3 - max({ side1, side2, side3 }) + l * w * h;
}
cout << sum << endl;
}
int
main()
{
auto puzzle = read_file("data/day02.txt");
part1(puzzle);
part2(puzzle);
}
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