leetcode-problemset/leetcode-cn/originData/count-items-matching-a-rule.json

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        "question": {
            "questionId": "1899",
            "questionFrontendId": "1773",
            "categoryTitle": "Algorithms",
            "boundTopicId": 620776,
            "title": "Count Items Matching a Rule",
            "titleSlug": "count-items-matching-a-rule",
            "content": "<p>You are given an array <code>items</code>, where each <code>items[i] = [type<sub>i</sub>, color<sub>i</sub>, name<sub>i</sub>]</code> describes the type, color, and name of the <code>i<sup>th</sup></code> item. You are also given a rule represented by two strings, <code>ruleKey</code> and <code>ruleValue</code>.</p>\n\n<p>The <code>i<sup>th</sup></code> item is said to match the rule if <strong>one</strong> of the following is true:</p>\n\n<ul>\n\t<li><code>ruleKey == &quot;type&quot;</code> and <code>ruleValue == type<sub>i</sub></code>.</li>\n\t<li><code>ruleKey == &quot;color&quot;</code> and <code>ruleValue == color<sub>i</sub></code>.</li>\n\t<li><code>ruleKey == &quot;name&quot;</code> and <code>ruleValue == name<sub>i</sub></code>.</li>\n</ul>\n\n<p>Return <em>the number of items that match the given rule</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> items = [[&quot;phone&quot;,&quot;blue&quot;,&quot;pixel&quot;],[&quot;computer&quot;,&quot;silver&quot;,&quot;lenovo&quot;],[&quot;phone&quot;,&quot;gold&quot;,&quot;iphone&quot;]], ruleKey = &quot;color&quot;, ruleValue = &quot;silver&quot;\n<strong>Output:</strong> 1\n<strong>Explanation:</strong> There is only one item matching the given rule, which is [&quot;computer&quot;,&quot;silver&quot;,&quot;lenovo&quot;].\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> items = [[&quot;phone&quot;,&quot;blue&quot;,&quot;pixel&quot;],[&quot;computer&quot;,&quot;silver&quot;,&quot;phone&quot;],[&quot;phone&quot;,&quot;gold&quot;,&quot;iphone&quot;]], ruleKey = &quot;type&quot;, ruleValue = &quot;phone&quot;\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> There are only two items matching the given rule, which are [&quot;phone&quot;,&quot;blue&quot;,&quot;pixel&quot;] and [&quot;phone&quot;,&quot;gold&quot;,&quot;iphone&quot;]. Note that the item [&quot;computer&quot;,&quot;silver&quot;,&quot;phone&quot;] does not match.</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= items.length &lt;= 10<sup>4</sup></code></li>\n\t<li><code>1 &lt;= type<sub>i</sub>.length, color<sub>i</sub>.length, name<sub>i</sub>.length, ruleValue.length &lt;= 10</code></li>\n\t<li><code>ruleKey</code> is equal to either <code>&quot;type&quot;</code>, <code>&quot;color&quot;</code>, or <code>&quot;name&quot;</code>.</li>\n\t<li>All strings consist only of lowercase letters.</li>\n</ul>\n",
            "translatedTitle": "统计匹配检索规则的物品数量",
            "translatedContent": "<p>给你一个数组 <code>items</code> ，其中 <code>items[i] = [type<sub>i</sub>, color<sub>i</sub>, name<sub>i</sub>]</code> ，描述第 <code>i</code> 件物品的类型、颜色以及名称。</p>\n\n<p>另给你一条由两个字符串 <code>ruleKey</code> 和 <code>ruleValue</code> 表示的检索规则。</p>\n\n<p>如果第 <code>i</code> 件物品能满足下述条件之一，则认为该物品与给定的检索规则 <strong>匹配</strong> ：</p>\n\n<ul>\n\t<li><code>ruleKey == \"type\"</code> 且 <code>ruleValue == type<sub>i</sub></code> 。</li>\n\t<li><code>ruleKey == \"color\"</code> 且 <code>ruleValue == color<sub>i</sub></code> 。</li>\n\t<li><code>ruleKey == \"name\"</code> 且 <code>ruleValue == name<sub>i</sub></code> 。</li>\n</ul>\n\n<p>统计并返回 <strong>匹配检索规则的物品数量</strong> 。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>items = [[\"phone\",\"blue\",\"pixel\"],[\"computer\",\"silver\",\"lenovo\"],[\"phone\",\"gold\",\"iphone\"]], ruleKey = \"color\", ruleValue = \"silver\"\n<strong>输出：</strong>1\n<strong>解释：</strong>只有一件物品匹配检索规则，这件物品是 [\"computer\",\"silver\",\"lenovo\"] 。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>items = [[\"phone\",\"blue\",\"pixel\"],[\"computer\",\"silver\",\"phone\"],[\"phone\",\"gold\",\"iphone\"]], ruleKey = \"type\", ruleValue = \"phone\"\n<strong>输出：</strong>2\n<strong>解释：</strong>只有两件物品匹配检索规则，这两件物品分别是 [\"phone\",\"blue\",\"pixel\"] 和 [\"phone\",\"gold\",\"iphone\"] 。注意，[\"computer\",\"silver\",\"phone\"] 未匹配检索规则。</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= items.length <= 10<sup>4</sup></code></li>\n\t<li><code>1 <= type<sub>i</sub>.length, color<sub>i</sub>.length, name<sub>i</sub>.length, ruleValue.length <= 10</code></li>\n\t<li><code>ruleKey</code> 等于 <code>\"type\"</code>、<code>\"color\"</code> 或 <code>\"name\"</code></li>\n\t<li>所有字符串仅由小写字母组成</li>\n</ul>\n",
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