TheAlgorithms
diff --git a/‎sliding_window/__init__.py‎ b/‎sliding_window/__init__.py‎
diff --git a/‎sliding_window/maximum_sum_subarray.py‎
Lines changed: 1 addition & 1 deletion b/‎sliding_window/maximum_sum_subarray.py‎
Lines changed: 1 addition & 1 deletion
@@ -36,7 +36,7 @@ def longest_substring_without_repeating_characters(s: str) -> int:
     >>> longest_substring_without_repeating_characters("tmmzuxt")
     5
     """
-    char_set = set()
+    char_set: set[str] = set()
     left_pointer = 0
     max_length = 0
Original file line number	Diff line number	Diff line change
`@@ -36,7 +36,7 @@ def longest_substring_without_repeating_characters(s: str) -> int:`
`36`	`36`	`>>> longest_substring_without_repeating_characters("tmmzuxt")`
`37`	`37`	`5`
`38`	`38`	`"""`
`39`		`- char_set = set()`
	`39`	`+ char_set: set[str] = set()`
`40`	`40`	`left_pointer = 0`
`41`	`41`	`max_length = 0`
`42`	`42`