AoC2022_Day13/main.cpp

#define OLC_PGE_APPLICATION
#include "pixelGameEngine.h"
#include "olcutils.h"
#include "List.h"

using namespace olc;
int main()
{
	std::ifstream file("input");
    while (file.good()){
        std::string line;
        std::getline(file,line);
        List*startingList=new List();
        List*currentList=nullptr;
        if (line.length()>0){
            for (int i=0;i<line.length();i++){
                if (line[i]=='['){
                    //std::cout<<"Read "<<line[i]<<"...";
                    if (currentList==nullptr){
                        currentList=startingList;
                    } else {
                        List*newList=new List();
                        Element el;
                        el.list=newList;
                        newList->parent=currentList;
                        currentList->elements.push_back(el);
                        currentList=el.list;
                    }
                } else 
                if (line[i]==']'){
                    //std::cout<<"Read "<<line[i]<<"...";
                    currentList=currentList->parent;
                } else 
                if (line[i]==','){
                    //std::cout<<"Read "<<line[i]<<"...";
                    continue;
                } else {//Assume it's a digit.
                    std::string acc="";
                    while (line[i]>='0'&&line[i]<='9'){
                        //std::cout<<"Read "<<line[i]<<"...";
                        acc+=line[i++];
                    }
                    Element el;
                    el.number=std::atoi(acc.c_str());
                    currentList->elements.push_back(el);
                    i--;
                }
            }
            std::cout<<line<<std::endl; 
            std::cout<<*startingList<<std::endl; 
        }
    }

	return 0;
}