4 files changed, 7 insertions, 2 deletions
diff --git a/1.py b/1.py
index 024c501..1c52458 100644
--- a/1.py
+++ b/1.py
@@ -1,3 +1,4 @@
+# pyright: strict
 import re
 from itertools import chain
 from sys import stdin
diff --git a/2.py b/2.py
index e21b3a4..d9c4433 100644
--- a/2.py
+++ b/2.py
@@ -1,3 +1,4 @@
+# pyright: strict
 from dataclasses import dataclass
 from functools import reduce
 from operator import mul
@@ -16,7 +17,7 @@ class Game:
 def parse(inp: str) -> Game:
     game, subsets_str = inp.rstrip().split(": ")
     _, game = game.split(" ")
-    subsets = list()
+    subsets: list[dict[str, int]] = list()
     for s in subsets_str.split("; "):
         cubes = [c.split(" ") for c in s.split(", ")]
         subsets.append({c[1]: int(c[0]) for c in cubes})
diff --git a/3.py b/3.py
index 8f5a8d3..eed75a3 100644
--- a/3.py
+++ b/3.py
@@ -1,3 +1,4 @@
+# pyright: strict
 import re
 from collections import defaultdict
 from collections.abc import Iterator
diff --git a/4.py b/4.py
index dfd7468..04f645f 100644
--- a/4.py
+++ b/4.py
@@ -1,6 +1,8 @@
+# pyright: strict
 from dataclasses import dataclass
 from functools import cache
 from sys import stdin
+from typing import Type
 
 
 @dataclass(frozen=True)
@@ -14,7 +16,7 @@ class Card:
         return len(self.winning & self.have)
 
     @classmethod
-    def from_str(cls, s: str):
+    def from_str[T](cls: Type[T], s: str) -> T:
         card, rest = s.split(": ")
         _, card_id = card.split()
         winning, have = rest.split(" | ")