AdventOfCode2021/02/main.cpp

#include "main.h"

void part1(){
	QFile input("input.txt");
	if(!input.open(QIODevice::ReadOnly | QIODevice::Text)){
		qDebug() << "file Borked!!";
	}

	QTextStream strm(&input);
	int x = 0;
	int y = 0;
	int value = 0;
	while(!strm.atEnd()){
		QString line = strm.readLine();
		QStringList parts = line.split(" ");
		value = parts[1].toInt();
		if(parts[0] ==  "up"){
			x -= value;
		}
		if(parts[0] ==  "down"){
			x += value;
		}
		if(parts[0] == "forward"){
			y += value;
		}
	}
	qDebug() << x*y;
}

void part2(){
	QFile input("input.txt");
	if(!input.open(QIODevice::ReadOnly | QIODevice::Text)){
		qDebug() << "file Borked!!";
	}

	QTextStream strm(&input);
	int x = 0;
	int y = 0;
	int aim = 0;
	int value = 0;
	while(!strm.atEnd()){
		QString line = strm.readLine();
		QStringList parts = line.split(" ");
		value = parts[1].toInt();
		if(parts[0] ==  "up"){
			aim -= value;
		}
		if(parts[0] ==  "down"){
			aim += value;
		}
		if(parts[0] == "forward"){
			y += value;
			x += (aim * value);
		}
	}
	qDebug() << x*y;

}

int main(int argc, char **argv){
part2();
return 0;
}