leetcode-problemset/leetcode-cn/originData/most-frequent-number-following-key-in-an-array.json

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            "categoryTitle": "Algorithms",
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            "title": "Most Frequent Number Following Key In an Array",
            "titleSlug": "most-frequent-number-following-key-in-an-array",
            "content": "<p>You are given a <strong>0-indexed</strong> integer array <code>nums</code>.<strong> </strong>You are also given an integer <code>key</code>, which is present in <code>nums</code>.</p>\n\n<p>For every unique integer <code>target</code> in <code>nums</code>, <strong>count</strong> the number of times <code>target</code> immediately follows an occurrence of <code>key</code> in <code>nums</code>. In other words, count the number of indices <code>i</code> such that:</p>\n\n<ul>\n\t<li><code>0 &lt;= i &lt;= nums.length - 2</code>,</li>\n\t<li><code>nums[i] == key</code> and,</li>\n\t<li><code>nums[i + 1] == target</code>.</li>\n</ul>\n\n<p>Return <em>the </em><code>target</code><em> with the <strong>maximum</strong> count</em>. The test cases will be generated such that the <code>target</code> with maximum count is unique.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,100,200,1,100], key = 1\n<strong>Output:</strong> 100\n<strong>Explanation:</strong> For target = 100, there are 2 occurrences at indices 1 and 4 which follow an occurrence of key.\nNo other integers follow an occurrence of key, so we return 100.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [2,2,2,2,3], key = 2\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> For target = 2, there are 3 occurrences at indices 1, 2, and 3 which follow an occurrence of key.\nFor target = 3, there is only one occurrence at index 4 which follows an occurrence of key.\ntarget = 2 has the maximum number of occurrences following an occurrence of key, so we return 2.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 &lt;= nums.length &lt;= 1000</code></li>\n\t<li><code>1 &lt;= nums[i] &lt;= 1000</code></li>\n\t<li>The test cases will be generated such that the answer is unique.</li>\n</ul>\n",
            "translatedTitle": "数组中紧跟 key 之后出现最频繁的数字",
            "translatedContent": "<p>给你一个下标从 <strong>0</strong>&nbsp;开始的整数数组&nbsp;<code>nums</code>&nbsp;，同时给你一个整数&nbsp;<code>key</code>&nbsp;，它在&nbsp;<code>nums</code>&nbsp;出现过。</p>\n\n<p><strong>统计&nbsp;</strong>在 <code>nums</code>&nbsp;数组中紧跟着 <code>key</code>&nbsp;后面出现的不同整数&nbsp;<code>target</code>&nbsp;的出现次数。换言之，<code>target</code>&nbsp;的出现次数为满足以下条件的 <code>i</code>&nbsp;的数目：</p>\n\n<ul>\n\t<li><code>0 &lt;= i &lt;= n - 2</code></li>\n\t<li><code>nums[i] == key</code>&nbsp;且</li>\n\t<li><code>nums[i + 1] == target</code>&nbsp;。</li>\n</ul>\n\n<p>请你返回出现 <strong>最多</strong>&nbsp;次数的<em>&nbsp;</em><code>target</code>&nbsp;。测试数据保证出现次数最多的 <code>target</code>&nbsp;是唯一的。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre><b>输入：</b>nums = [1,100,200,1,100], key = 1\n<b>输出：</b>100\n<b>解释：</b>对于 target = 100 ，在下标 1 和 4 处出现过 2 次，且都紧跟着 key 。\n没有其他整数在 key 后面紧跟着出现，所以我们返回 100 。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre><b>输入：</b>nums = [2,2,2,2,3], key = 2\n<b>输出：</b>2\n<b>解释：</b>对于 target = 2 ，在下标 1 ，2 和 3 处出现过 3 次，且都紧跟着 key 。\n对于 target = 3 ，在下标 4 出出现过 1 次，且紧跟着 key 。\ntarget = 2 是紧跟着 key 之后出现次数最多的数字，所以我们返回 2 。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>2 &lt;= nums.length &lt;= 1000</code></li>\n\t<li><code>1 &lt;= nums[i] &lt;= 1000</code></li>\n\t<li>测试数据保证答案是唯一的。</li>\n</ul>\n",
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