sigonasr2/AoC2022_Day18
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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
This commit is contained in:
sigonasr2 2022-12-19 07:48:56 -06:00
parent c205e9a110
commit 95ac19515e
3 changed files with 64 additions and 17 deletions
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C++ProjectTemplate
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77
main.cpp
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@ -1,15 +1,36 @@
#define OLC_PGE_APPLICATION
#include "pixelGameEngine.h"
#include "olcutils.h"
#include <cassert>
using namespace olc;
std::map<std::string,bool>blocks;
std::map<std::string,bool>trappedBlocks;
int minX=0,maxX=0,minY=0,maxY=0,minZ=0,maxZ=0;
bool escape(int x,int y,int z,std::map<std::string,bool>visited){
visited[std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z)]=true;
if (x<=minX||x>=maxX||y<=minY||y>=maxY||z<=minZ||z>=maxZ){
return true;
} else {
if (blocks.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z))!=blocks.end()){
return false;
}
if (visited.find(std::to_string(x+1)+"_"+std::to_string(y)+"_"+std::to_string(z))==visited.end()&&escape(x+1,y,z,visited)||
visited.find(std::to_string(x-1)+"_"+std::to_string(y)+"_"+std::to_string(z))==visited.end()&&escape(x-1,y,z,visited)||
visited.find(std::to_string(x)+"_"+std::to_string(y+1)+"_"+std::to_string(z))==visited.end()&&escape(x,y+1,z,visited)||
visited.find(std::to_string(x)+"_"+std::to_string(y-1)+"_"+std::to_string(z))==visited.end()&&escape(x,y-1,z,visited)||
visited.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z+1))==visited.end()&&escape(x,y,z+1,visited)||
visited.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z-1))==visited.end()&&escape(x,y,z-1,visited)){
return true;
} else {
return false;
}
}
}
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;
std::ifstream file("input");
int surfaceArea=0;
while (file.good()){
std::string line;
@ -25,9 +46,9 @@ int main()
std::cout<<x<<","<<y<<","<<z<<std::endl;
minX=std::min(x,minX);
maxX=std::max(x,maxX);
minY=std::min(y,maxY);
minY=std::min(y,minY);
maxY=std::max(y,maxY);
minZ=std::min(z,maxZ);
minZ=std::min(z,minZ);
maxZ=std::max(z,maxZ);
if (blocks.find(std::to_string(x)+"_"+std::to_string(y-1)+"_"+std::to_string(z))==blocks.end()){
surfaceArea++;
@ -59,26 +80,52 @@ int main()
} 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;
int trappedSurfaceArea=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++;
if (!escape(x,y,z,{})){
trappedBlocks[std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z)]=true;
std::cout<<"Block "<<std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z)<<" is trapped"<<std::endl;
if (trappedBlocks.find(std::to_string(x)+"_"+std::to_string(y-1)+"_"+std::to_string(z))==trappedBlocks.end()){
trappedSurfaceArea++;
} else {
trappedSurfaceArea--;
}
if (trappedBlocks.find(std::to_string(x)+"_"+std::to_string(y+1)+"_"+std::to_string(z))==trappedBlocks.end()){
trappedSurfaceArea++;
} else {
trappedSurfaceArea--;
}
if (trappedBlocks.find(std::to_string(x-1)+"_"+std::to_string(y)+"_"+std::to_string(z))==trappedBlocks.end()){
trappedSurfaceArea++;
} else {
trappedSurfaceArea--;
}
if (trappedBlocks.find(std::to_string(x+1)+"_"+std::to_string(y)+"_"+std::to_string(z))==trappedBlocks.end()){
trappedSurfaceArea++;
} else {
trappedSurfaceArea--;
}
if (trappedBlocks.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z-1))==trappedBlocks.end()){
trappedSurfaceArea++;
} else {
trappedSurfaceArea--;
}
if (trappedBlocks.find(std::to_string(x)+"_"+std::to_string(y)+"_"+std::to_string(z+1))==trappedBlocks.end()){
trappedSurfaceArea++;
} else {
trappedSurfaceArea--;
}
}
}
}
std::cout<<surfaceArea-sum<<std::endl;
}
std::cout<<surfaceArea-trappedSurfaceArea<<std::endl;
return 0;
}

2
testinput
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@ -10,4 +10,4 @@
1,2,5
3,2,5
2,1,5
12,13,15
2,3,5