Day 2

src/days/02/Day02.cpp

@@ -1,9 +1,65 @@
 #include "Day02.h"
 
 Result Day02::Task1() {
-    return Day::Task1();
+	int r = 12;
+	int g = 13;
+	int b = 14;
+
+	uint32_t sum = 0;
+	uint32_t id = 1;
+	for (const Game &game : parseGames()){
+		bool possible = true;
+		for (const auto &set : game)
+			if (set[0] > r || set[1] > g || set[2] > b)
+				possible = false;
+		if (possible)
+			sum += id;
+
+		id++;
+	}
+    return to_string(sum);
 }
 
 Result Day02::Task2() {
-    return Day::Task2();
-}
+	uint32_t sum = 0;
+	for (const Game &game : parseGames()){
+		size_t r = 0, g = 0, b = 0;
+		for (const auto &set : game){
+			r = std::max(r, set[0]);
+			g = std::max(g, set[1]);
+			b = std::max(b, set[2]);
+		}
+		sum += r * g * b;
+	}
+	return to_string(sum);
+}
+
+vector<Day02::Game> Day02::parseGames() const {
+	vector<Game> games;
+	for (const string &line : input){
+		auto record = line.substr(line.find(": ") + 1);
+		record.push_back(';');
+		auto setIndices = findAll(record, ";");
+
+		Game game;
+		size_t start = 0;
+		for (size_t i : setIndices){
+			auto set = record.substr(start, i - start);
+
+			auto findNumber = [set](const string &type) -> size_t {
+				auto pos = set.find(type);
+				if (pos != string::npos)
+					return std::stoul(set.substr(pos - 3, 2));
+				return 0;
+			};
+			size_t r = findNumber("red");
+			size_t g = findNumber("green");
+			size_t b = findNumber("blue");
+
+			game.push_back({r, g, b});
+			start = i;
+		}
+		games.push_back(game);
+	}
+	return games;
+}

src/days/02/Day02.h

@@ -3,8 +3,11 @@
 #include "../../Day.h"
 
 class Day02 : public Day {
+	typedef vector<std::array<size_t, 3>> Game;
 protected:
     Result Task1() override;
 
     Result Task2() override;
+
+	vector<Game> parseGames() const;
 };