2023-3-1

2023/3/onestar.py

@@ -0,0 +1,39 @@
+# Inlezen hele kaart naar list-of-lists
+map = []
+with open("input.txt", "r") as f:
+    for line in f.readlines():
+        line = line.strip()
+        map.append(list(line))
+HEIGHT = len(map)
+WIDTH = len(map[0])
+
+def isSymbol(c):
+    # desda karakter geen nummer of punt is
+    return c != '.' and (c < '0' or c > '9')
+def toevoegen(x, y):
+    # desda (x, y) aangrenzend is aan een symbool
+    for xi in range(x-1, x+2):
+        for yi in range(y-1, y+2):
+            xi = min(max(xi, 0), WIDTH-1)
+            yi = min(max(yi, 0), HEIGHT-1)
+            if isSymbol(map[yi][xi]):
+                return True
+    return False
+
+teller = 0
+nummer = 0
+adding = False
+for y in range(HEIGHT):
+    for x in range(WIDTH):
+        try:
+            n = int(map[y][x])
+            nummer *= 10
+            nummer += n
+            if toevoegen(x, y):
+                adding = True
+        except Exception as e:
+            if adding:
+                teller += nummer
+            adding = False
+            nummer = 0
+print(teller)