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1817-calculate-money-in-leetcode-bank/README.md

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+<h2><a href="https://leetcode.com/problems/calculate-money-in-leetcode-bank">1817. Calculate Money in Leetcode Bank</a></h2><h3>Easy</h3><hr><p>Hercy wants to save money for his first car. He puts money in the Leetcode&nbsp;bank <strong>every day</strong>.</p>
+
+<p>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 <strong>previous Monday</strong>.<span style="display: none;"> </span></p>
+
+<p>Given <code>n</code>, return <em>the total amount of money he will have in the Leetcode bank at the end of the </em><code>n<sup>th</sup></code><em> day.</em></p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example 1:</strong></p>
+
+<pre>
+<strong>Input:</strong> n = 4
+<strong>Output:</strong> 10
+<strong>Explanation:</strong>&nbsp;After the 4<sup>th</sup> day, the total is 1 + 2 + 3 + 4 = 10.
+</pre>
+
+<p><strong class="example">Example 2:</strong></p>
+
+<pre>
+<strong>Input:</strong> n = 10
+<strong>Output:</strong> 37
+<strong>Explanation:</strong>&nbsp;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.
+</pre>
+
+<p><strong class="example">Example 3:</strong></p>
+
+<pre>
+<strong>Input:</strong> n = 20
+<strong>Output:</strong> 96
+<strong>Explanation:</strong>&nbsp;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.
+</pre>
+
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>1 &lt;= n &lt;= 1000</code></li>
+</ul>