Finish day5p1

day5/run.py

@@ -37,14 +37,21 @@ class CheckManual:
         self._input = input[1:]
         sep = self._input.splitlines().index("")
         self.rules = self.parse_rules(self._input.splitlines()[:sep])
-        self.pages = self._input.splitlines()[sep:]
+        self.pages = [val.split(",") for val in self._input.splitlines()[sep + 1 :]]
+        self.validity = self.check_page_order()
 
     def __str__(self) -> str:
         return f"Part1: {self._part1}\nPart2: {self._part2}"
 
     @property
     def _part1(self) -> int:
-        return None
+        return sum(
+            [
+                int(val[len(val) // 2])
+                for val, check in zip(self.pages, self.validity)
+                if check
+            ]
+        )
 
     @property
     def _part2(self) -> int:
@@ -56,10 +63,9 @@ class CheckManual:
         def make_rule(rule: str, sep: str = "|") -> Callable[[str], bool]:
             left, right = rule.split(sep)
 
-            def check(pages: str) -> bool:
-                _pages = pages.split(",")
+            def check(pages: List[str]) -> bool:
                 try:
-                    _pages.index(left) < _pages.index(right)
+                    return pages.index(left) < pages.index(right)
                 except ValueError:
                     return True
 
@@ -74,3 +80,7 @@ class CheckManual:
 if __name__ == "__main__":
     example = CheckManual(EXAMPLE)
     print(example)
+    assert example._part1 == 143
+    with open("input.txt", "r") as f:
+        main = CheckManual(f.read())
+        print(main)