AoC2022_Day5/main.cpp

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

using namespace olc;

int main()
{
	std::ifstream file("input");
    std::array<std::string,9>stacks={
        {
            "ZJNWPS",
            "GST",
            "VQRLH",
            "VSTD",
            "QZTDBMJ",
            "MWTJDCZL",
            "LPMWGTJ",
            "NGMTBFQH",
            "RDGCPBQW"
        },
    };
    std::string line;
    for (int i=0;i<10;i++){
        std::getline(file,line);
    }
    while (file.good()){
        std::getline(file,line);
        int marker=line.find_first_of(' ');
        int prevmarker=0;
        int move=std::atoi(line.substr(marker+1,line.find_first_of(' ',marker+1)-marker).c_str());
        std::cout<<move<<std::endl;
        prevmarker=marker;marker=line.find_first_of(' ',marker+1);
        prevmarker=marker;marker=line.find_first_of(' ',marker+1);
        int from=std::atoi(line.substr(marker+1,line.find_first_of(' ',marker+1)-marker).c_str());
        std::cout<<from<<std::endl;
        prevmarker=marker;marker=line.find_first_of(' ',marker+1);
        prevmarker=marker;marker=line.find_first_of(' ',marker+1);
        int to=std::atoi(line.substr(marker+1,std::string::npos).c_str());
        std::cout<<to<<std::endl;

        to--;
        from--;

        stacks[to]+=stacks[from].substr(stacks[from].length()-move,move);
        stacks[from]=stacks[from].substr(0,stacks[from].length()-move);
    }

    for (int i=0;i<stacks.size();i++){
        std::cout<<"Stack "<<i+1<<" Top:"<<stacks[i][stacks[i].size()-1]<<std::endl;
    }

	return 0;
}