beep

day7/1.py

@@ -0,0 +1,22 @@
+with open(r'day7/input.txt', 'r') as input:
+    lines = input.read().split('\n')[:-1]
+
+active = set([lines[0].index('S')])
+
+split_cnt = 0
+
+for line in lines[1:]:
+    active_buf = set()
+    for i in active:
+        if line[i] == '^':
+            if i > 0:
+                active_buf.add(i-1) 
+            if i < len(line) -1:
+                active_buf.add(i+1)
+            split_cnt+=1
+        else:
+            active_buf.add(i)
+    active = active_buf
+
+
+print(split_cnt)