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Author: hogan-tech

1817-calculate-money-in-leetcode-bank/1817-calculate-money-in-leetcode-bank.py

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+# time complexity: O(1)
+# space complexity: O(1)
+class Solution:
+    def totalMoney(self, n: int) -> int:
+        m = n // 7
+        k = n % 7
+        preWeeks = m * 28 + 7 * ((m - 1) * m // 2)
+        lastWeek = k * (k + 1) // 2 + m * k
+        return preWeeks + lastWeek
+
+
+n = 4
+print(Solution().totalMoney(n))