leetcode-problemset/leetcode-cn/originData/rings-and-rods.json

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        "question": {
            "questionId": "2226",
            "questionFrontendId": "2103",
            "categoryTitle": "Algorithms",
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            "title": "Rings and Rods",
            "titleSlug": "rings-and-rods",
            "content": "<p>There are <code>n</code> rings and each ring is either red, green, or blue. The rings are distributed <strong>across ten rods</strong> labeled from <code>0</code> to <code>9</code>.</p>\n\n<p>You are given a string <code>rings</code> of length <code>2n</code> that describes the <code>n</code> rings that are placed onto the rods. Every two characters in <code>rings</code> forms a <strong>color-position pair</strong> that is used to describe each ring where:</p>\n\n<ul>\n\t<li>The <strong>first</strong> character of the <code>i<sup>th</sup></code> pair denotes the <code>i<sup>th</sup></code> ring&#39;s <strong>color</strong> (<code>&#39;R&#39;</code>, <code>&#39;G&#39;</code>, <code>&#39;B&#39;</code>).</li>\n\t<li>The <strong>second</strong> character of the <code>i<sup>th</sup></code> pair denotes the <strong>rod</strong> that the <code>i<sup>th</sup></code> ring is placed on (<code>&#39;0&#39;</code> to <code>&#39;9&#39;</code>).</li>\n</ul>\n\n<p>For example, <code>&quot;R3G2B1&quot;</code> describes <code>n == 3</code> rings: a red ring placed onto the rod labeled 3, a green ring placed onto the rod labeled 2, and a blue ring placed onto the rod labeled 1.</p>\n\n<p>Return <em>the number of rods that have <strong>all three colors</strong> of rings on them.</em></p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/11/23/ex1final.png\" style=\"width: 258px; height: 130px;\" />\n<pre>\n<strong>Input:</strong> rings = &quot;B0B6G0R6R0R6G9&quot;\n<strong>Output:</strong> 1\n<strong>Explanation:</strong> \n- The rod labeled 0 holds 3 rings with all colors: red, green, and blue.\n- The rod labeled 6 holds 3 rings, but it only has red and blue.\n- The rod labeled 9 holds only a green ring.\nThus, the number of rods with all three colors is 1.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/11/23/ex2final.png\" style=\"width: 266px; height: 130px;\" />\n<pre>\n<strong>Input:</strong> rings = &quot;B0R0G0R9R0B0G0&quot;\n<strong>Output:</strong> 1\n<strong>Explanation:</strong> \n- The rod labeled 0 holds 6 rings with all colors: red, green, and blue.\n- The rod labeled 9 holds only a red ring.\nThus, the number of rods with all three colors is 1.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> rings = &quot;G4&quot;\n<strong>Output:</strong> 0\n<strong>Explanation:</strong> \nOnly one ring is given. Thus, no rods have all three colors.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>rings.length == 2 * n</code></li>\n\t<li><code>1 &lt;= n &lt;= 100</code></li>\n\t<li><code>rings[i]</code> where <code>i</code> is <strong>even</strong> is either <code>&#39;R&#39;</code>, <code>&#39;G&#39;</code>, or <code>&#39;B&#39;</code> (<strong>0-indexed</strong>).</li>\n\t<li><code>rings[i]</code> where <code>i</code> is <strong>odd</strong> is a digit from <code>&#39;0&#39;</code> to <code>&#39;9&#39;</code> (<strong>0-indexed</strong>).</li>\n</ul>\n",
            "translatedTitle": "环和杆",
            "translatedContent": "<p>总计有 <code>n</code> 个环，环的颜色可以是红、绿、蓝中的一种。这些环分布穿在 10 根编号为 <code>0</code> 到 <code>9</code> 的杆上。</p>\n\n<p>给你一个长度为 <code>2n</code> 的字符串 <code>rings</code> ，表示这 <code>n</code> 个环在杆上的分布。<code>rings</code> 中每两个字符形成一个 <strong>颜色位置对</strong> ，用于描述每个环：</p>\n\n<ul>\n\t<li>第 <code>i</code> 对中的 <strong>第一个</strong> 字符表示第 <code>i</code> 个环的 <strong>颜色</strong>（<code>'R'</code>、<code>'G'</code>、<code>'B'</code>）。</li>\n\t<li>第 <code>i</code> 对中的 <strong>第二个</strong> 字符表示第 <code>i</code> 个环的 <strong>位置</strong>，也就是位于哪根杆上（<code>'0'</code> 到 <code>'9'</code>）。</li>\n</ul>\n\n<p>例如，<code>\"R3G2B1\"</code> 表示：共有 <code>n == 3</code> 个环，红色的环在编号为 3 的杆上，绿色的环在编号为 2 的杆上，蓝色的环在编号为 1 的杆上。</p>\n\n<p>找出所有集齐 <strong>全部三种颜色</strong> 环的杆，并返回这种杆的数量。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/11/23/ex1final.png\" style=\"width: 258px; height: 130px;\">\n<pre><strong>输入：</strong>rings = \"B0B6G0R6R0R6G9\"\n<strong>输出：</strong>1\n<strong>解释：</strong>\n- 编号 0 的杆上有 3 个环，集齐全部颜色：红、绿、蓝。\n- 编号 6 的杆上有 3 个环，但只有红、蓝两种颜色。\n- 编号 9 的杆上只有 1 个绿色环。\n因此，集齐全部三种颜色环的杆的数目为 1 。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/11/23/ex2final.png\" style=\"width: 266px; height: 130px;\">\n<pre><strong>输入：</strong>rings = \"B0R0G0R9R0B0G0\"\n<strong>输出：</strong>1\n<strong>解释：</strong>\n- 编号 0 的杆上有 6 个环，集齐全部颜色：红、绿、蓝。\n- 编号 9 的杆上只有 1 个红色环。\n因此，集齐全部三种颜色环的杆的数目为 1 。\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre><strong>输入：</strong>rings = \"G4\"\n<strong>输出：</strong>0\n<strong>解释：</strong>\n只给了一个环，因此，不存在集齐全部三种颜色环的杆。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>rings.length == 2 * n</code></li>\n\t<li><code>1 &lt;= n &lt;= 100</code></li>\n\t<li>如 <code>i</code> 是 <strong>偶数</strong> ，则&nbsp;<code>rings[i]</code> 的值可以取 <code>'R'</code>、<code>'G'</code> 或 <code>'B'</code>（下标从 <strong>0</strong> 开始计数）</li>\n\t<li>如 <code>i</code> 是 <strong>奇数</strong> ，则&nbsp;<code>rings[i]</code> 的值可以取 <code>'0'</code> 到 <code>'9'</code> 中的一个数字（下标从 <strong>0</strong> 开始计数）</li>\n</ul>\n",
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                "For every rod, look through ‘rings’ to see if the rod contains all colors.",
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