leetcode-problemset/leetcode-cn/originData/friends-of-appropriate-ages.json

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            "title": "Friends Of Appropriate Ages",
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            "content": "<p>There are <code>n</code> persons on a social media website. You are given an integer array <code>ages</code> where <code>ages[i]</code> is the age of the <code>i<sup>th</sup></code> person.</p>\n\n<p>A Person <code>x</code> will not send a friend request to a person <code>y</code> (<code>x != y</code>) if any of the following conditions is true:</p>\n\n<ul>\n\t<li><code>age[y] &lt;= 0.5 * age[x] + 7</code></li>\n\t<li><code>age[y] &gt; age[x]</code></li>\n\t<li><code>age[y] &gt; 100 &amp;&amp; age[x] &lt; 100</code></li>\n</ul>\n\n<p>Otherwise, <code>x</code> will send a friend request to <code>y</code>.</p>\n\n<p>Note that if <code>x</code> sends a request to <code>y</code>, <code>y</code> will not necessarily send a request to <code>x</code>. Also, a person will not send a friend request to themself.</p>\n\n<p>Return <em>the total number of friend requests made</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> ages = [16,16]\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> 2 people friend request each other.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> ages = [16,17,18]\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> Friend requests are made 17 -&gt; 16, 18 -&gt; 17.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> ages = [20,30,100,110,120]\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> Friend requests are made 110 -&gt; 100, 120 -&gt; 110, 120 -&gt; 100.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == ages.length</code></li>\n\t<li><code>1 &lt;= n &lt;= 2 * 10<sup>4</sup></code></li>\n\t<li><code>1 &lt;= ages[i] &lt;= 120</code></li>\n</ul>\n",
            "translatedTitle": "适龄的朋友",
            "translatedContent": "<p>在社交媒体网站上有 <code>n</code> 个用户。给你一个整数数组 <code>ages</code> ，其中 <code>ages[i]</code> 是第 <code>i</code> 个用户的年龄。</p>\n\n<p>如果下述任意一个条件为真，那么用户 <code>x</code> 将不会向用户 <code>y</code>（<code>x != y</code>）发送好友请求：</p>\n\n<ul>\n\t<li><code>ages[y] &lt;= 0.5 * ages[x] + 7</code></li>\n\t<li><code>ages[y] &gt; ages[x]</code></li>\n\t<li><code>ages[y] &gt; 100 &amp;&amp; ages[x] &lt; 100</code></li>\n</ul>\n\n<p>否则，<code>x</code> 将会向 <code>y</code> 发送一条好友请求。</p>\n\n<p>注意，如果 <code>x</code> 向 <code>y</code> 发送一条好友请求，<code>y</code> 不必也向 <code>x</code> 发送一条好友请求。另外，用户不会向自己发送好友请求。</p>\n\n<p>返回在该社交媒体网站上产生的好友请求总数。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>ages = [16,16]\n<strong>输出：</strong>2\n<strong>解释：</strong>2 人互发好友请求。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>ages = [16,17,18]\n<strong>输出：</strong>2\n<strong>解释：</strong>产生的好友请求为 17 -&gt; 16 ，18 -&gt; 17 。\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>ages = [20,30,100,110,120]\n<strong>输出：</strong>3\n<strong>解释：</strong>产生的好友请求为 110 -&gt; 100 ，120 -&gt; 110 ，120 -&gt; 100 。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>n == ages.length</code></li>\n\t<li><code>1 &lt;= n &lt;= 2 * 10<sup>4</sup></code></li>\n\t<li><code>1 &lt;= ages[i] &lt;= 120</code></li>\n</ul>\n",
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