Start refactoring code better flexibility.

src/holt59/aoc/2024/day7.py

@@ -1,10 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-answer_1 = ...
 
-answer_2 = ...
-
-print(f"answer 1 is {answer_1}")
-print(f"answer 2 is {answer_2}")
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]: ...