stats day 17

17/17.awk

@@ -0,0 +1,66 @@
+function step(){
+	x += velx
+	y += vely
+	velx += (velx>0) ? -1 : (velx<0) ? 1 : 0
+	vely -= 1
+}
+
+function insidearea(){
+	return x>=xmin && x<=xmax && y>=ymin && y<=ymax
+}
+
+function outofbounds(){
+	return y<ymin
+}
+
+{
+	print $3
+	gsub("x=","",$3)
+	gsub(",","",$3)
+	split($3,arr,/\.\./)
+	xmin= arr[1]
+	xmax = arr[2]
+	print $4
+	gsub("y=","",$4)
+	split($4,arr,/\.\./)
+	ymin= arr[1]
+	ymax = arr[2]
+}
+END{
+	print xmin,xmax,ymin,ymax
+	maxy = 0; maxyvelx = 0; maxyvely = 0;
+	count = 0
+	minxa=0; minya=0; maxxa=0; maxya=0
+ # 0 -75 275 74
+	for(tvely=-100;tvely<=100;tvely++){
+		for(tvelx=0;tvelx<=300;tvelx++){
+			x=0; y=0; localmaxy = 0;
+			velx = tvelx; vely = tvely;
+			delete visited;
+#			print "testing", velx, vely
+			while(!insidearea() && !outofbounds()){
+				step();
+#				print x,y,velx,vely
+				if(y>localmaxy) localmaxy = y
+			}
+			if(insidearea()){
+				print "arrived"
+				count++
+				if(tvelx<minxa) minxa = tvelx
+				if(tvely<minya) minya = tvely
+				if(tvelx>maxxa) maxxa = tvelx
+				if(tvely>maxya) maxya = tvely
+				if(localmaxy>maxy){
+					maxy = localmaxy
+					maxyvelx = tvelx
+					maxyvely = tvely
+#					print "new max", maxy, maxyvelx, maxyvely
+				}
+				print tvelx, tvely, localmaxy, maxy
+			}
+		}
+	}
+	print "part 1:", maxy, maxyvelx, maxyvely
+	print "part 2:", count
+	print minxa, minya, maxxa, maxya
+}

17/Makefile

@@ -0,0 +1,14 @@
+1t:
+	awk -f 17.awk test
+
+1i:
+	awk  -f 17.awk input
+
+2t:
+	awk  -f 17_2.awk test
+
+2i:
+	awk  -f 17_2.awk input
+
+paste:
+	xclip -sel c -o > test

README.md

@@ -27,6 +27,7 @@ awk -c -f 01.awk inputfile
 ```
       -------Part 1--------   -------Part 2--------
 Day       Time  Rank  Score       Time  Rank  Score
+ 17   00:41:03  2839      0   00:56:57  2841      0
  16   00:34:15   550      0   02:21:09  3657      0
  15   16:52:00 24420      0   17:30:02 20656      0 --- thanks alderwick for your help!
  14   00:27:53  4878      0   01:07:47  3311      0