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            "content": "<p>You have a cubic storeroom where the width, length, and height of the room are all equal to <code>n</code> units. You are asked to place <code>n</code> boxes in this room where each box is a cube of unit side length. There are however some rules to placing the boxes:</p>\n\n<ul>\n\t<li>You can place the boxes anywhere on the floor.</li>\n\t<li>If box <code>x</code> is placed on top of the box <code>y</code>, then each side of the four vertical sides of the box <code>y</code> <strong>must</strong> either be adjacent to another box or to a wall.</li>\n</ul>\n\n<p>Given an integer <code>n</code>, return<em> the <strong>minimum</strong> possible number of boxes touching the floor.</em></p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/01/04/3-boxes.png\" style=\"width: 135px; height: 143px;\" /></p>\n\n<pre>\n<strong>Input:</strong> n = 3\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> The figure above is for the placement of the three boxes.\nThese boxes are placed in the corner of the room, where the corner is on the left side.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/01/04/4-boxes.png\" style=\"width: 135px; height: 179px;\" /></p>\n\n<pre>\n<strong>Input:</strong> n = 4\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> The figure above is for the placement of the four boxes.\nThese boxes are placed in the corner of the room, where the corner is on the left side.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/01/04/10-boxes.png\" style=\"width: 271px; height: 257px;\" /></p>\n\n<pre>\n<strong>Input:</strong> n = 10\n<strong>Output:</strong> 6\n<strong>Explanation:</strong> The figure above is for the placement of the ten boxes.\nThese boxes are placed in the corner of the room, where the corner is on the back side.</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n &lt;= 10<sup>9</sup></code></li>\n</ul>\n",
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