calculate-money-in-leetcode-bank

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Algorithms

Hercy wants to save money for his first car. He puts money in the Leetcode&nbsp;bank every day.

He starts by putting in <code>$1</code> on Monday, the first day. Every day from Tuesday to Sunday, he will put in <code>$1</code> more than the day before. On every subsequent Monday, he will put in <code>$1</code> more than the previous Monday. 

Given <code>n</code>, return the total amount of money he will have in the Leetcode bank at the end of the <code>nth</code> day.

&nbsp;
Example 1:

<pre>
Input: n = 4
Output: 10
Explanation:&nbsp;After the 4th day, the total is 1 + 2 + 3 + 4 = 10.
</pre>

Example 2:

<pre>
Input: n = 10
Output: 37
Explanation:&nbsp;After the 10th day, the total is (1 + 2 + 3 + 4 + 5 + 6 + 7) + (2 + 3 + 4) = 37. Notice that on the 2nd Monday, Hercy only puts in $2.
</pre>

Example 3:

<pre>
Input: n = 20
Output: 96
Explanation:&nbsp;After the 20th 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.
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= n &lt;= 1000</code></li>
</ul>

totalMoney

Calculate Money in Leetcode Bank

Distribute Money to Maximum Children

distribute-money-to-maximum-children

将钱分给最多的儿童

Math

Hercy 想要为购买第一辆车存钱。他 每天 都往力扣银行里存钱。

最开始，他在周一的时候存入 <code>1</code> 块钱。从周二到周日，他每天都比前一天多存入 <code>1</code> 块钱。在接下来每一个周一，他都会比 前一个周一 多存入 <code>1</code> 块钱。 

给你 <code>n</code> ，请你返回在第 <code>n</code> 天结束的时候他在力扣银行总共存了多少块钱。

 

示例 1：

<pre>输入：n = 4
输出：10
解释：第 4 天后，总额为 1 + 2 + 3 + 4 = 10 。
</pre>

示例 2：

<pre>输入：n = 10
输出：37
解释：第 10 天后，总额为 (1 + 2 + 3 + 4 + 5 + 6 + 7) + (2 + 3 + 4) = 37 。注意到第二个星期一，Hercy 存入 2 块钱。
</pre>

示例 3：

<pre>输入：n = 20
输出：96
解释：第 20 天后，总额为 (1 + 2 + 3 + 4 + 5 + 6 + 7) + (2 + 3 + 4 + 5 + 6 + 7 + 8) + (3 + 4 + 5 + 6 + 7 + 8) = 96 。
</pre>

 

提示：

<ul>
	<li><code>1 &lt;= n &lt;= 1000</code></li>
</ul>