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0650-2-keys-keyboard/README.md

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+<h2><a href="https://leetcode.com/problems/2-keys-keyboard">650. 2 Keys Keyboard</a></h2><h3>Medium</h3><hr><p>There is only one character <code>&#39;A&#39;</code> on the screen of a notepad. You can perform one of two operations on this notepad for each step:</p>
+
+<ul>
+	<li>Copy All: You can copy all the characters present on the screen (a partial copy is not allowed).</li>
+	<li>Paste: You can paste the characters which are copied last time.</li>
+</ul>
+
+<p>Given an integer <code>n</code>, return <em>the minimum number of operations to get the character</em> <code>&#39;A&#39;</code> <em>exactly</em> <code>n</code> <em>times on the screen</em>.</p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example 1:</strong></p>
+
+<pre>
+<strong>Input:</strong> n = 3
+<strong>Output:</strong> 3
+<strong>Explanation:</strong> Initially, we have one character &#39;A&#39;.
+In step 1, we use Copy All operation.
+In step 2, we use Paste operation to get &#39;AA&#39;.
+In step 3, we use Paste operation to get &#39;AAA&#39;.
+</pre>
+
+<p><strong class="example">Example 2:</strong></p>
+
+<pre>
+<strong>Input:</strong> n = 1
+<strong>Output:</strong> 0
+</pre>
+
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>1 &lt;= n &lt;= 1000</code></li>
+</ul>