20/20.awk

@@ -1,78 +0,0 @@
-BEGIN{ RS = ""; FS="" }
-
-NR==1{
-	for(i=1;i<=NF;i++){
-		en[i-1] = $i=="#" ? 1 : 0
-	}
-	RS = "\n"
-	next
-}
-
-{
-	for(i=-1;i<=NF+2;i++){
-		if(i>=1 && i<=NF)
-			inp[i,NR-1] = $i=="#" ? 1 : 0
-		else
-			inp[i,NR-1] = 0
-	}
-}
-
-function wintonum(px,py){
-	nbit = 8; num=0
-	for(j=py-1;j<=py+1;j++){
-		for(i=px-1;i<=px+1;i++){
-			b = inp[i,j]=="" ? 0 : inp[i,j]
-			num += lshift( b, nbit)
-			nbit--
-		}
-	}
-	return num
-}
-
-function wintonum2(px,py){
-	nbit = 8; num=0
-	for(j=py-1;j<=py+1;j++){
-		for(i=px-1;i<=px+1;i++){
-			b = inp[i,j]=="" ? en[0] : inp[i,j]
-			num += lshift( b, nbit)
-			nbit--
-		}
-	}
-	return num
-}
-
-END{
-	xmin=-1; xmax=NF+2
-	ymin=-1; ymax=NR+1
-
-	count = 0
-	# first pass
-	for(y=ymin; y<=ymax; y++){
-		for(x=xmin; x<=xmax; x++){
-			newinp[x,y] = en[ wintonum(x,y) ]
-			count += en[ wintonum(x,y) ]
-#			printf "%c", newinp[x,y]==1? "#" : "."
-		}
-#		print ""
-	}
-	print count
-
-	print ""
-
-	delete inp
-	# copy result
-	for(p in newinp) inp[p] = newinp[p]
-
-	# second pass
-	count = 0
-	for(y=ymin; y<=ymax; y++){
-		for(x=xmin; x<=xmax; x++){
-			wn = wintonum2(x,y)
-			count += en[ wn ]
-#			printf "%c", en[ wn ]==1 ? "#" : "."
-		}
-#		print ""
-	}
-
-	print count
-}

20/20_2.awk

@@ -1,68 +0,0 @@
-BEGIN{ RS = ""; FS="" }
-
-NR==1{
-	for(i=1;i<=NF;i++){
-		en[i-1] = $i=="#" ? 1 : 0
-	}
-	RS = "\n"
-	next
-}
-
-{
-	for(i=-1;i<=NF+2;i++){
-		if(i>=1 && i<=NF)
-			inp[i,NR-1] = $i=="#" ? 1 : 0
-		else
-			inp[i,NR-1] = 0
-	}
-}
-
-function wintonum(px,py){
-	nbit = 8; num=0
-	for(j=py-1;j<=py+1;j++){
-		for(i=px-1;i<=px+1;i++){
-			b = inp[i,j]=="" ? 0 : inp[i,j]
-			num += lshift( b, nbit)
-			nbit--
-		}
-	}
-	return num
-}
-
-function wintonum2(px,py,pss){
-	nbit = 8; num=0
-	for(j=py-1;j<=py+1;j++){
-		for(i=px-1;i<=px+1;i++){
-			b = inp[i,j]=="" ? (pss%2==0? en[0] : 0 ) : inp[i,j]
-			num += lshift( b, nbit)
-			nbit--
-		}
-	}
-	return num
-}
-
-END{
-	xmin=-1; xmax=NF+2
-	ymin=-1; ymax=NR+1
-
-	for(pass=1;pass<=50;pass++){
-
-		count = 0
-		for(y=ymin-pass; y<=ymax+pass; y++){
-			for(x=xmin-pass; x<=xmax+pass; x++){
-				wn = (pass==1) ? wintonum(x,y) : wintonum2(x,y,pass)
-				newinp[x,y] = en[ wn ]
-				count += en[ wn ]
-#				printf "%c", newinp[x,y]==1? "#" : "."
-			}
-#			print ""
-		}
-		print "pass",pass,"count:",count
-
-		delete inp
-		# copy result
-		for(p in newinp) inp[p] = newinp[p]
-		delete newinp
-	}
-
-}

20/Makefile

@@ -1,14 +0,0 @@
-1t:
-	awk -f 20.awk test
-
-1i:
-	awk  -f 20.awk input
-
-2t:
-	awk  -f 20_2.awk test
-
-2i:
-	awk  -f 20_2.awk input
-
-paste:
-	xclip -sel c -o > test

README.md

@@ -27,7 +27,6 @@ awk -c -f 01.awk inputfile
 ```
       -------Part 1--------   -------Part 2--------
 Day       Time  Rank  Score       Time  Rank  Score
- 20   12:59:28 11947      0   13:14:02 11669      0 --- same as 18
  18      >24h  16659      0      >24h  16484      0 --- solved it afterwards
  17   00:41:03  2839      0   00:56:57  2841      0
  16   00:34:15   550      0   02:21:09  3657      0