aoc 2017 - day 7

www/statics/aoc/2017/07_solution-1.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+import aoc
+
+
+def parse_line(line: str):
+    childs = list()
+    if ' -> ' in line:
+        split1 = line.split(' -> ')
+        childs = list(map(lambda x: x.strip(), split1[1].strip().split(',')))
+        line = split1[0]
+
+    line = line.strip()
+    line = line.replace('(', '').replace(')', '')
+    split2 = line.split(' ')
+    name = split2[0].strip()
+    weight = int(split2[1].strip())
+    return name, weight, childs
+
+
+rawinput = aoc.read_input(7)
+
+data = list(map(lambda x: parse_line(x), rawinput.splitlines()))
+
+rnodes = list(map(lambda x: x[0], data))
+
+for datum in data:
+    for xnode in datum[2]:
+        rnodes.remove(xnode)
+
+assert len(rnodes) == 1
+print(rnodes[0])
+
+
+