solved 9b in 9a

.gitignore

@@ -4,3 +4,4 @@
 
 *.swp
 *.swo
+.DS_Store

2021/day9/9a.py

@@ -18,4 +18,26 @@ for p in lowList:
 	
 
 print(summa)
-print(lowList)
+explored = []
+
+def explore(x,y):
+	if lines[x][y] == 9 or (x,y) in explored:
+		return 0
+	explored.append((x,y))
+	size = 1
+	if y != 0:
+		size += explore(x,y-1)
+	if y != len(lines[x]) - 1:
+		size += explore(x,y+1)
+	if x != 0:
+		size += explore(x-1,y)
+	if x != len(lines) - 1:
+		size += explore(x+1,y)
+	return size
+
+sizes = [0]*len(lowList)
+for i in range(len(lowList)):
+	sizes[i] = explore(lowList[i][0],lowList[i][1])
+
+sizes.sort()
+print(sizes[-1] * sizes[-2] * sizes[-3])

README.md

@@ -1,10 +1,10 @@
 my solutions for the [Advent of Code](https://adventofcode.com/)
 
 in progress:\
-2021 (python)
-2022 (python)
+2021 (python)\
 
 planned:\
+2022 (rust)\
 2020\
 2019\
 2018\