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"title": "Minimum Moves to Convert String",
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"content": "<p>You are given a string <code>s</code> consisting of <code>n</code> characters which are either <code>'X'</code> or <code>'O'</code>.</p>\n\n<p>A <strong>move</strong> is defined as selecting <strong>three</strong> <strong>consecutive characters</strong> of <code>s</code> and converting them to <code>'O'</code>. Note that if a move is applied to the character <code>'O'</code>, it will stay the <strong>same</strong>.</p>\n\n<p>Return <em>the <strong>minimum</strong> number of moves required so that all the characters of </em><code>s</code><em> are converted to </em><code>'O'</code>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "XXX"\n<strong>Output:</strong> 1\n<strong>Explanation:</strong> <u>XXX</u> -> OOO\nWe select all the 3 characters and convert them in one move.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "XXOX"\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> <u>XXO</u>X -> O<u>OOX</u> -> OOOO\nWe select the first 3 characters in the first move, and convert them to <code>'O'</code>.\nThen we select the last 3 characters and convert them so that the final string contains all <code>'O'</code>s.</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "OOOO"\n<strong>Output:</strong> 0\n<strong>Explanation:</strong> There are no <code>'X's</code> in <code>s</code> to convert.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>3 <= s.length <= 1000</code></li>\n\t<li><code>s[i]</code> is either <code>'X'</code> or <code>'O'</code>.</li>\n</ul>\n",
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