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"categoryTitle": "Algorithms",
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"title": "Super Washing Machines",
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"content": "<p>You have <code>n</code> super washing machines on a line. Initially, each washing machine has some dresses or is empty.</p>\n\n<p>For each move, you could choose any <code>m</code> (<code>1 &lt;= m &lt;= n</code>) washing machines, and pass one dress of each washing machine to one of its adjacent washing machines at the same time.</p>\n\n<p>Given an integer array <code>machines</code> representing the number of dresses in each washing machine from left to right on the line, return <em>the minimum number of moves to make all the washing machines have the same number of dresses</em>. If it is not possible to do it, return <code>-1</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> machines = [1,0,5]\n<strong>Output:</strong> 3\n<strong>Explanation:</strong>\n1st move: 1 0 &lt;-- 5 =&gt; 1 1 4\n2nd move: 1 &lt;-- 1 &lt;-- 4 =&gt; 2 1 3\n3rd move: 2 1 &lt;-- 3 =&gt; 2 2 2\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> machines = [0,3,0]\n<strong>Output:</strong> 2\n<strong>Explanation:</strong>\n1st move: 0 &lt;-- 3 0 =&gt; 1 2 0\n2nd move: 1 2 --&gt; 0 =&gt; 1 1 1\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> machines = [0,2,0]\n<strong>Output:</strong> -1\n<strong>Explanation:</strong>\nIt&#39;s impossible to make all three washing machines have the same number of dresses.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == machines.length</code></li>\n\t<li><code>1 &lt;= n &lt;= 10<sup>4</sup></code></li>\n\t<li><code>0 &lt;= machines[i] &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
"translatedTitle": "超级洗衣机",
"translatedContent": "<p>假设有 <code>n</code><strong>&nbsp;</strong>台超级洗衣机放在同一排上。开始的时候,每台洗衣机内可能有一定量的衣服,也可能是空的。</p>\n\n<p>在每一步操作中,你可以选择任意 <code>m</code> (<code>1 &lt;= m &lt;= n</code>) 台洗衣机,与此同时将每台洗衣机的一件衣服送到相邻的一台洗衣机。</p>\n\n<p>给定一个整数数组&nbsp;<code>machines</code> 代表从左至右每台洗衣机中的衣物数量,请给出能让所有洗衣机中剩下的衣物的数量相等的 <strong>最少的操作步数 </strong>。如果不能使每台洗衣机中衣物的数量相等,则返回 <code>-1</code> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1</strong></p>\n\n<pre>\n<strong>输入:</strong>machines = [1,0,5]\n<strong>输出:</strong>3\n<strong>解释:</strong>\n第一步: 1 0 &lt;-- 5 =&gt; 1 1 4\n第二步: 1 &lt;-- 1 &lt;-- 4 =&gt; 2 1 3 \n第三步: 2 1 &lt;-- 3 =&gt; 2 2 2 \n</pre>\n\n<p><strong>示例 2</strong></p>\n\n<pre>\n<strong>输入:</strong>machines = [0,3,0]\n<strong>输出:</strong>2\n<strong>解释:</strong>\n第一步: 0 &lt;-- 3 0 =&gt; 1 2 0 \n第二步: 1 2 --&gt; 0 =&gt; 1 1 1 \n</pre>\n\n<p><strong>示例 3</strong></p>\n\n<pre>\n<strong>输入:</strong>machines = [0,2,0]\n<strong>输出:</strong>-1\n<strong>解释:</strong>\n不可能让所有三个洗衣机同时剩下相同数量的衣物。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>n == machines.length</code></li>\n\t<li><code>1 &lt;= n &lt;= 10<sup>4</sup></code></li>\n\t<li><code>0 &lt;= machines[i] &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
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