diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..21c63e4
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,11 @@
+{
+  "[python]": {
+    "editor.formatOnSave": true,
+    "editor.defaultFormatter": "charliermarsh.ruff",
+    "editor.codeActionsOnSave": {
+      "source.organizeImports": "explicit"
+    }
+  },
+  "ruff.nativeServer": "on",
+  "ruff.lineLength": 119
+}
diff --git a/day1/common.py b/day1/common.py
index 17a39cb..75c654f 100644
--- a/day1/common.py
+++ b/day1/common.py
@@ -1,8 +1,8 @@
-
 def parse(filename: str) -> list:
-    with open(filename, 'r') as f:
+    with open(filename, "r") as f:
         return [line[:-1] for line in f.readlines()]
-    
+
+
 def split(parsed: list[str]) -> tuple[list[int], list[int]]:
     l1 = []
     l2 = []
@@ -12,6 +12,7 @@ def split(parsed: list[str]) -> tuple[list[int], list[int]]:
         l2.append(int(c2))
     return l1, l2
 
+
 def split_and_sort(parsed: list[str]) -> tuple[list[int], list[int]]:
     l1, l2 = split(parsed)
-    return sorted(l1), sorted(l2)
\ No newline at end of file
+    return sorted(l1), sorted(l2)
diff --git a/day1/part1.py b/day1/part1.py
index 62e80bc..840128e 100644
--- a/day1/part1.py
+++ b/day1/part1.py
@@ -2,11 +2,10 @@ from common import parse, split_and_sort
 
 
 def main() -> None:
-    l1, l2 = split_and_sort(parse('input'))
-    assert ( len(l1) == len(l2))
+    l1, l2 = split_and_sort(parse("input"))
+    assert len(l1) == len(l2)
     print(sum(map(lambda i: abs(l1[i] - l2[i]), range(len(l1)))))
 
 
-
-if __name__ == '__main__':
-    main()
\ No newline at end of file
+if __name__ == "__main__":
+    main()
diff --git a/day1/part2.py b/day1/part2.py
index abd910f..9b5b741 100644
--- a/day1/part2.py
+++ b/day1/part2.py
@@ -2,9 +2,9 @@ from common import parse, split
 
 
 def main():
-    l1, l2 = split(parse('input'))
+    l1, l2 = split(parse("input"))
     print(sum(map(lambda x: x * len(list(filter(lambda y: y == x, l2))), l1)))
 
 
-if __name__ == '__main__':
-    main()
\ No newline at end of file
+if __name__ == "__main__":
+    main()