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2483-minimum-penalty-for-a-shop/2483-minimum-penalty-for-a-shop.py

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+class Solution:
+    def bestClosingTime(self, customers: str) -> int:
+        penalty = 0
+        minPenalty = 0
+        bestHour = 0
+
+        for hour, hasCustomers in enumerate(customers):
+            if hasCustomers == "Y":
+                penalty -= 1
+            else:
+                penalty += 1
+
+            if penalty < minPenalty:
+                minPenalty = penalty
+                bestHour = hour + 1
+
+        return bestHour