Implement 2024 day 23

Is using networkx cheating? I don't think so. I've already solved
max-clique before, so I know I can do it

2024/src/aoc/days/day23.py

@@ -0,0 +1,42 @@
+from collections import defaultdict
+
+import networkx
+
+from . import SeparateRunner
+
+
+class DayRunner(SeparateRunner):
+    @classmethod
+    def part1(cls, input: str) -> int:
+        edges = defaultdict(set)
+
+        for line in input.strip().split("\n"):
+            a, b = line.split("-")
+            edges[a].add(b)
+            edges[b].add(a)
+
+        found = set()
+
+        for a, out in edges.items():
+            if a[0] != "t":
+                continue
+
+            for b in out:
+                for c in edges[b]:
+                    if c in out:
+                        found.add(tuple(sorted([a, b, c])))
+
+        return len(found)
+
+    @classmethod
+    def part2(cls, input: str) -> str:
+        graph = networkx.Graph()
+
+        for line in input.strip().split("\n"):
+            a, b = line.split("-")
+            graph.add_edge(a, b)
+
+        cliques = networkx.find_cliques(graph)
+        max_clique = max(cliques, key=len)
+
+        return ",".join(sorted(max_clique))