Class Solution
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public final class Solution
1716 - Calculate Money in Leetcode Bank.
Easy
Hercy wants to save money for his first car. He puts money in the Leetcode bank every day.
He starts by putting in
$1
on Monday, the first day. Every day from Tuesday to Sunday, he will put in$1
more than the day before. On every subsequent Monday, he will put in$1
more than the previous Monday.Given
n
, return the total amount of money he will have in the Leetcode bank at the end of the <code>n<sup>th</sup></code> day.Example 1:
Input: n = 4
Output: 10
Explanation: After the 4<sup>th</sup> day, the total is 1 + 2 + 3 + 4 = 10.
Example 2:
Input: n = 10
Output: 37
Explanation: After the 10<sup>th</sup> day, the total is (1 + 2 + 3 + 4 + 5 + 6 + 7) + (2 + 3 + 4) = 37. Notice that on the 2<sup>nd</sup> Monday, Hercy only puts in $2.
Example 3:
Input: n = 20
Output: 96
Explanation: After the 20<sup>th</sup> day, the total is (1 + 2 + 3 + 4 + 5 + 6 + 7) + (2 + 3 + 4 + 5 + 6 + 7 + 8) + (3 + 4 + 5 + 6 + 7 + 8) = 96.
Constraints:
1 <= n <= 1000
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Constructor Summary
Constructors Constructor Description Solution()
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Method Summary
Modifier and Type Method Description final Integer
totalMoney(Integer n)
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Method Detail
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totalMoney
final Integer totalMoney(Integer n)
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