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AoC2022_Day18/main.cpp

84 lines
2.9 KiB

#define OLC_PGE_APPLICATION
#include "pixelGameEngine.h"
#include "olcutils.h"
#include <cassert>
using namespace olc;
int main()
{
std::map<std::string,bool>blocks;
std::ifstream file("testinput");
int minX=0,maxX=0,minY=0,maxY=0,minZ=0,maxZ=0;
int surfaceArea=0;
while (file.good()){
std::string line;
std::getline(file,line);
if (line.length()>0){
//std::cout<<line<<std::endl;
int marker=0;
int x=std::atoi(line.substr(marker,line.find(',',marker)-marker).c_str());
marker=line.find(',',marker)+1;
int y=std::atoi(line.substr(marker,line.find(',',marker)-marker).c_str());
marker=line.find(',',marker)+1;
int z=std::atoi(line.substr(marker,line.find(',',marker)-marker).c_str());
std::cout<<x<<","<<y<<","<<z<<std::endl;
minX=std::min(x,minX);
maxX=std::max(x,maxX);
minY=std::min(y,maxY);
maxY=std::max(y,maxY);
minZ=std::min(z,maxZ);
maxZ=std::max(z,maxZ);
if (blocks.find(std::to_string(x)+"_"+std::to_string(y-1)+"_"+std::to_string(z))==blocks.end()){
surfaceArea++;
} else {
surfaceArea--;
}
if (blocks.find(std::to_string(x)+"_"+std::to_string(y+1)+"_"+std::to_string(z))==blocks.end()){
surfaceArea++;
} else {
surfaceArea--;
}
if (blocks.find(std::to_string(x-1)+"_"+std::to_string(y)+"_"+std::to_string(z))==blocks.end()){
surfaceArea++;
} else {
surfaceArea--;
}
if (blocks.find(std::to_string(x+1)+"_"+std::to_string(y)+"_"+std::to_string(z))==blocks.end()){
surfaceArea++;
} else {
surfaceArea--;
}
if (blocks.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z-1))==blocks.end()){
surfaceArea++;
} else {
surfaceArea--;
}
if (blocks.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z+1))==blocks.end()){
surfaceArea++;
} else {
surfaceArea--;
}
if (blocks.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z))==blocks.end()){
blocks[std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z)]=true;
} else {
std::cout<<"DUPLICATE FOUND!"<<std::endl;
assert(false);
}
std::cout<<surfaceArea<<std::endl;
}
}
int sum=0;
for (int x=-minX;x<=maxX;x++){
for (int y=-minY;y<=maxY;y++){
for (int z=-minZ;z<=maxZ;z++){
if (escape(x,y,z)){
sum++;
}
}
}
}
std::cout<<surfaceArea-sum<<std::endl;
return 0;
}