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#include <fstream>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>
using namespace std;
struct Sue {
optional<long> children;
optional<long> cats;
optional<long> samoyeds;
optional<long> pomeranians;
optional<long> akitas;
optional<long> vizslas;
optional<long> goldfish;
optional<long> trees;
optional<long> cars;
optional<long> perfumes;
};
auto
split(const string& line, char sep = ' ')
{
vector<string> parts;
stringstream input{ line };
for ( string part; getline(input, part, sep); ) {
parts.emplace_back(part);
}
return parts;
}
auto
read_file(string_view filename)
{
fstream input{ filename };
vector<Sue> records;
auto invalidChar = [](char chr) {
return chr == ':' || chr == ',';
};
for ( string line; getline(input, line); ) {
line.erase(remove_if(line.begin(), line.end(), invalidChar), line.end());
auto parts = split(line);
Sue sue;
for ( size_t idx = 2; idx != parts.size(); idx += 2 ) {
auto key = parts[idx];
auto value = stol(parts[idx + 1]);
if ( key == "children" ) {
sue.children = value;
}
else if ( key == "cats" ) {
sue.cats = value;
}
else if ( key == "samoyeds" ) {
sue.samoyeds = value;
}
else if ( key == "pomeranians" ) {
sue.pomeranians = value;
}
else if ( key == "akitas" ) {
sue.akitas = value;
}
else if ( key == "vizslas" ) {
sue.vizslas = value;
}
else if ( key == "goldfish" ) {
sue.goldfish = value;
}
else if ( key == "trees" ) {
sue.trees = value;
}
else if ( key == "cars" ) {
sue.cars = value;
}
else if ( key == "perfumes" ) {
sue.perfumes = value;
}
else {
cerr << "unknown property: " << key << ": " << value << endl;
}
}
records.emplace_back(sue);
}
return records;
}
void
part1(const vector<Sue>& sues)
{
Sue testSue{ 3, 7, 2, 3, 0, 0, 5, 3, 2, 1 }; // NOLINT
for ( size_t idx = 0; idx != sues.size(); ++idx ) {
const auto& sue = sues[idx];
if ( (!sue.children.has_value() || sue.children == testSue.children) &&
(!sue.cats.has_value() || sue.cats == testSue.cats) &&
(!sue.samoyeds.has_value() || sue.samoyeds == testSue.samoyeds) &&
(!sue.pomeranians.has_value() || sue.pomeranians == testSue.pomeranians) &&
(!sue.akitas.has_value() || sue.akitas == testSue.akitas) &&
(!sue.vizslas.has_value() || sue.vizslas == testSue.vizslas) &&
(!sue.goldfish.has_value() || sue.goldfish == testSue.goldfish) &&
(!sue.trees.has_value() || sue.trees == testSue.trees) &&
(!sue.cars.has_value() || sue.cars == testSue.cars) &&
(!sue.perfumes.has_value() || sue.perfumes == testSue.perfumes) ) {
cout << idx + 1 << endl;
}
}
}
void
part2(const vector<Sue>& sues)
{
Sue testSue{ 3, 7, 2, 3, 0, 0, 5, 3, 2, 1 }; // NOLINT
for ( size_t idx = 0; idx != sues.size(); ++idx ) {
const auto& sue = sues[idx];
if ( (!sue.children.has_value() || sue.children == testSue.children) &&
(!sue.cats.has_value() || sue.cats > testSue.cats) &&
(!sue.samoyeds.has_value() || sue.samoyeds == testSue.samoyeds) &&
(!sue.pomeranians.has_value() || sue.pomeranians < testSue.pomeranians) &&
(!sue.akitas.has_value() || sue.akitas == testSue.akitas) &&
(!sue.vizslas.has_value() || sue.vizslas == testSue.vizslas) &&
(!sue.goldfish.has_value() || sue.goldfish < testSue.goldfish) &&
(!sue.trees.has_value() || sue.trees > testSue.trees) &&
(!sue.cars.has_value() || sue.cars == testSue.cars) &&
(!sue.perfumes.has_value() || sue.perfumes == testSue.perfumes) ) {
cout << idx + 1 << endl;
}
}
}
int
main()
{
auto sues = read_file("data/day16.txt");
part1(sues);
part2(sues);
}
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