Day10

src/days/10/Day10.cpp

@@ -1,9 +1,52 @@
 #include "Day10.h"
 
 Result Day10::Task1() {
-	return Day::Task1();
+	int sum = 0;
+	int R = 1;
+	int cycle = 1;
+	for (const string &line : input){
+		int count = 1;
+		int add = 0;
+		if (line.starts_with("addx")){
+			add = stoi(line.substr(5));
+			count = 2;
+		}
+		for (int i = 0; i < count; i++){
+			if ((cycle - 20) % 40 == 0){
+				sum += cycle * R;
+			}
+			cycle++;
+		}
+		R += add;
+	}
+
+	return to_string(sum);
 }
 
 Result Day10::Task2() {
-	return Day::Task2();
+	string image = "\n";
+	int R = 1;
+	int cycle = 0;
+	for (const string &line : input){
+		int count = 1;
+		int add = 0;
+		if (line.starts_with("addx")){
+			add = stoi(line.substr(5));
+			count = 2;
+		}
+		for (int i = 0; i < count; i++) {
+			char pixel = '.';
+			int y = cycle / 40;
+			int x = cycle - (y * 40);
+			if (x == R || x == R - 1 || x == R + 1)
+				pixel = '#';
+			image += pixel;
+			cycle++;
+			if (cycle % 40 == 0)
+				image += "\n";
+		}
+		R += add;
+	}
+
+	return image;
 }

src/main.cpp

@@ -56,6 +56,17 @@ string getSessionKey() {
 	return key;
 }
 
+void parseArgument(const string& arg, int &dayNum, bool &useTestInput, int &testFetchIndex){
+	size_t tIndex = arg.find('T');
+	if (tIndex == string::npos) {
+		dayNum = stoi(arg);
+		return;
+	}
+	dayNum = stoi(arg.substr(0, tIndex));
+	useTestInput = true;
+	testFetchIndex = stoi(arg.substr(tIndex + 1));
+}
+
 int main(int argc, char *argv[]) {
 
 	auto key = getSessionKey();
@@ -64,9 +75,10 @@ int main(int argc, char *argv[]) {
 
 	for (int i = 1; i < argc; i++) {
 		string arg = argv[i];
-		bool useTestInput = arg.size() > 1 && arg[1] == 'T';
+		bool useTestInput = false;
-		int testFetchIndex = useTestInput && arg.size() > 2 ? arg[2] - '0' : 0;
+		int testFetchIndex;
-		int dayNum = std::stoi(arg);
+		int dayNum;
+		parseArgument(arg, dayNum, useTestInput, testFetchIndex);
 		cout << "Running day " << dayNum << endl;
 		Input input = getInput(dayNum, key, useTestInput, testFetchIndex);
 		Day *day = days[dayNum - 1];