sigonasr2/AoC2022_Day17
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Optimized algo

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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
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sigonasr2 2022-12-17 22:49:59 -06:00
parent 0e3364917e
commit 09a3d84459
3 changed files with 75 additions and 14 deletions
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82
main.cpp
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@ -5,10 +5,11 @@
using namespace olc;
std::array<std::array<char,7>,30000000>playfieldRows;
int main()
{
std::ifstream file("input");
std::vector<std::array<char,7>>playfieldRows;
std::ifstream file("testinput");
std::array<std::array<char,4>,4>piece{{
{' ',' ',' ',' '},
{' ',' ',' ',' '},
@ -37,8 +38,16 @@ int main()
{' ',' ',' ',' '},
{' ',' ',' ',' '}}},{2,2}},}};
int currentPiece=0;
int topRow=0;
int topRow=playfieldRows.size();
int stackSize=0;
int jetMarker=0;
std::cout<<"Initializing array..."<<std::endl;
for (int y=0;y<playfieldRows.size();y++){
for (int x=0;x<7;x++){
playfieldRows[y][x]=' ';
}
}
std::cout<<"Starting."<<std::endl;
while (file.good()){
std::string line;
std::getline(file,line);
@ -50,16 +59,7 @@ int main()
currentPiece=(currentPiece+1)%5;
int newRows=3-topRow+piece.second.y;
//std::cout<<"Adding "<<newRows<<" rows..."<<std::endl;
if (newRows>0){
for (int j=0;j<newRows;j++){
std::array<char,7>newRow={' ',' ',' ',' ',' ',' ',' '};
playfieldRows.insert(playfieldRows.begin(),newRow);
topRow++;
}
piecePos={2,0};
} else {
piecePos={2,topRow-3-piece.second.y};
}
while (!pieceLanded) {
char direction=line[jetMarker];
//std::cout<<direction;
@ -125,12 +125,68 @@ int main()
}
}
if (piecePos.y<topRow){
stackSize+=topRow-piecePos.y;
topRow=piecePos.y;
}
pieceLanded=true;
} else {
piecePos.y++;
}
for (int yy=0;yy<piece.second.y;yy++){
bool completeRow=true;
for (int xx=0;xx<7;xx++){
if (playfieldRows[piecePos.y+yy][xx]==' '){
completeRow=false;
break;
}
}
if (completeRow){
//std::cout<<"Complete row found! @"<<piecePos.y<<std::endl;
int chopPoint=piecePos.y+yy;
int topRowDiff=chopPoint-topRow;
//std::cout<<"Top Row Diff: "<<topRowDiff<<std::endl;
/*for (int yyy=chopPoint-topRowDiff;yyy<playfieldRows.size();yyy++){
for (int xxx=0;xxx<9;xxx++){
if (xxx==0||xxx==8){
std::cout<<'|';
} else {
std::cout<<playfieldRows[yyy][xxx-1];
}
}
std::cout<<std::endl;
}*/
//std::cout<<"==========="<<std::endl;
for (int yyy=chopPoint;yyy<playfieldRows.size();yyy++){
for (int xxx=0;xxx<7;xxx++){
playfieldRows[yyy][xxx]=' ';
}
}
//std::cout<<"Cleared current board!"<<std::endl;
topRow=playfieldRows.size();
for (int yyy=chopPoint-topRowDiff;yyy<chopPoint;yyy++){
for (int xxx=0;xxx<7;xxx++){
playfieldRows[yyy+playfieldRows.size()-chopPoint][xxx]=playfieldRows[yyy][xxx];
if (playfieldRows[yyy+playfieldRows.size()-chopPoint][xxx]!=' '&&yyy+playfieldRows.size()-chopPoint<topRow){
topRow=yyy+playfieldRows.size()-chopPoint;
}
playfieldRows[yyy][xxx]=' ';
}
}
/*std::cout<<"New board:"<<std::endl;
for (int yyy=playfieldRows.size()-topRowDiff;yyy<playfieldRows.size();yyy++){
for (int xxx=0;xxx<9;xxx++){
if (xxx==0||xxx==8){
std::cout<<'|';
} else {
std::cout<<playfieldRows[yyy][xxx-1];
}
}
std::cout<<std::endl;
}
std::cout<<"Shifted down elements. New Top:"<<topRow<<std::endl;*/
break;
}
}
jetMarker=(jetMarker+1)%line.length();
//std::cout<<"jetMarker is now "<<jetMarker<<std::endl;
/*for (int y=0;y<playfieldRows.size();y++){
@ -163,7 +219,7 @@ int main()
}*/
}
std::cout<<std::endl;
std::cout<<"The tower is "<<playfieldRows.size()-topRow<<" tall!"<<std::endl;
std::cout<<"The tower is "<<stackSize<<" tall!"<<std::endl;
}
}

5
out
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@ -25,5 +25,10 @@ Check utils/
Running program...
Initializing array...
Starting.
>>><<><>><<<>><>>><<<>>><<<><<<>><>><<>>
The tower is 3068 tall!