leetcode-problemset/leetcode-cn/originData/simplify-path.json

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        "question": {
            "questionId": "71",
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            "categoryTitle": "Algorithms",
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            "title": "Simplify Path",
            "titleSlug": "simplify-path",
            "content": "<p>You are given an <em>absolute</em> path for a Unix-style file system, which always begins with a slash <code>&#39;/&#39;</code>. Your task is to transform this absolute path into its <strong>simplified canonical path</strong>.</p>\n\n<p>The <em>rules</em> of a Unix-style file system are as follows:</p>\n\n<ul>\n\t<li>A single period <code>&#39;.&#39;</code> represents the current directory.</li>\n\t<li>A double period <code>&#39;..&#39;</code> represents the previous/parent directory.</li>\n\t<li>Multiple consecutive slashes such as <code>&#39;//&#39;</code> and <code>&#39;///&#39;</code> are treated as a single slash <code>&#39;/&#39;</code>.</li>\n\t<li>Any sequence of periods that does <strong>not match</strong> the rules above should be treated as a <strong>valid directory or</strong> <strong>file </strong><strong>name</strong>. For example, <code>&#39;...&#39; </code>and <code>&#39;....&#39;</code> are valid directory or file names.</li>\n</ul>\n\n<p>The simplified canonical path should follow these <em>rules</em>:</p>\n\n<ul>\n\t<li>The path must start with a single slash <code>&#39;/&#39;</code>.</li>\n\t<li>Directories within the path must be separated by exactly one slash <code>&#39;/&#39;</code>.</li>\n\t<li>The path must not end with a slash <code>&#39;/&#39;</code>, unless it is the root directory.</li>\n\t<li>The path must not have any single or double periods (<code>&#39;.&#39;</code> and <code>&#39;..&#39;</code>) used to denote current or parent directories.</li>\n</ul>\n\n<p>Return the <strong>simplified canonical path</strong>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">path = &quot;/home/&quot;</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">&quot;/home&quot;</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>The trailing slash should be removed.</p>\n</div>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">path = &quot;/home//foo/&quot;</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">&quot;/home/foo&quot;</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>Multiple consecutive slashes are replaced by a single one.</p>\n</div>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">path = &quot;/home/user/Documents/../Pictures&quot;</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">&quot;/home/user/Pictures&quot;</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>A double period <code>&quot;..&quot;</code> refers to the directory up a level (the parent directory).</p>\n</div>\n\n<p><strong class=\"example\">Example 4:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">path = &quot;/../&quot;</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">&quot;/&quot;</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>Going one level up from the root directory is not possible.</p>\n</div>\n\n<p><strong class=\"example\">Example 5:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">path = &quot;/.../a/../b/c/../d/./&quot;</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">&quot;/.../b/d&quot;</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p><code>&quot;...&quot;</code> is a valid name for a directory in this problem.</p>\n</div>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= path.length &lt;= 3000</code></li>\n\t<li><code>path</code> consists of English letters, digits, period <code>&#39;.&#39;</code>, slash <code>&#39;/&#39;</code> or <code>&#39;_&#39;</code>.</li>\n\t<li><code>path</code> is a valid absolute Unix path.</li>\n</ul>\n",
            "translatedTitle": "简化路径",
            "translatedContent": "<p>给你一个字符串 <code>path</code> ，表示指向某一文件或目录的&nbsp;Unix 风格 <strong>绝对路径 </strong>（以 <code>'/'</code> 开头），请你将其转化为 <strong>更加简洁的规范路径</strong>。</p>\n\n<p class=\"MachineTrans-lang-zh-CN\">在 Unix 风格的文件系统中规则如下：</p>\n\n<ul>\n\t<li class=\"MachineTrans-lang-zh-CN\">一个点&nbsp;<code>'.'</code>&nbsp;表示当前目录本身。</li>\n\t<li class=\"MachineTrans-lang-zh-CN\">此外，两个点 <code>'..'</code>&nbsp;表示将目录切换到上一级（指向父目录）。</li>\n\t<li class=\"MachineTrans-lang-zh-CN\">任意多个连续的斜杠（即，<code>'//'</code>&nbsp;或 <code>'///'</code>）都被视为单个斜杠 <code>'/'</code>。</li>\n\t<li class=\"MachineTrans-lang-zh-CN\">任何其他格式的点（例如，<code>'...'</code>&nbsp;或 <code>'....'</code>）均被视为有效的文件/目录名称。</li>\n</ul>\n\n<p>返回的 <strong>简化路径</strong> 必须遵循下述格式：</p>\n\n<ul>\n\t<li>始终以斜杠 <code>'/'</code> 开头。</li>\n\t<li>两个目录名之间必须只有一个斜杠 <code>'/'</code> 。</li>\n\t<li>最后一个目录名（如果存在）<strong>不能 </strong>以 <code>'/'</code> 结尾。</li>\n\t<li>此外，路径仅包含从根目录到目标文件或目录的路径上的目录（即，不含 <code>'.'</code> 或 <code>'..'</code>）。</li>\n</ul>\n\n<p>返回简化后得到的 <strong>规范路径</strong> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong class=\"example\">示例 1：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong><span class=\"example-io\">path = \"/home/\"</span></p>\n\n<p><span class=\"example-io\"><b>输出：</b>\"/home\"</span></p>\n\n<p><strong>解释：</strong></p>\n\n<p>应删除尾随斜杠。</p>\n</div>\n\n<p><strong class=\"example\">示例 2：</strong></p>\n\n<div class=\"example-block\">\n<p><span class=\"example-io\"><b>输入：</b>path = \"/home//foo/\"</span></p>\n\n<p><span class=\"example-io\"><b>输出：</b>\"/home/foo\"</span></p>\n\n<p><strong>解释：</strong></p>\n\n<p>多个连续的斜杠被单个斜杠替换。</p>\n</div>\n\n<p><strong class=\"example\">示例 3：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong><span class=\"example-io\">path = \"/home/user/Documents/../Pictures\"</span></p>\n\n<p><span class=\"example-io\"><b>输出：</b>\"/home/user/Pictures\"</span></p>\n\n<p><strong>解释：</strong></p>\n\n<p>两个点&nbsp;<code>\"..\"</code>&nbsp;表示上一级目录（父目录）。</p>\n</div>\n\n<p><strong class=\"example\">示例 4：</strong></p>\n\n<div class=\"example-block\">\n<p><span class=\"example-io\"><b>输入：</b>path = \"/../\"</span></p>\n\n<p><span class=\"example-io\"><b>输出：</b>\"/\"</span></p>\n\n<p><strong>解释：</strong></p>\n\n<p>不可能从根目录上升一级目录。</p>\n</div>\n\n<p><strong class=\"example\">示例 5：</strong></p>\n\n<div class=\"example-block\">\n<p><span class=\"example-io\"><b>输入：</b>path = \"/.../a/../b/c/../d/./\"</span></p>\n\n<p><span class=\"example-io\"><b>输出：</b>\"/.../b/d\"</span></p>\n\n<p><strong>解释：</strong></p>\n\n<p><code>\"...\"</code>&nbsp;在这个问题中是一个合法的目录名。</p>\n</div>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= path.length &lt;= 3000</code></li>\n\t<li><code>path</code> 由英文字母，数字，<code>'.'</code>，<code>'/'</code> 或 <code>'_'</code> 组成。</li>\n\t<li><code>path</code> 是一个有效的 Unix 风格绝对路径。</li>\n</ul>\n",
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\\u7b2c\\u4e09\\u65b9\\u5e93\\u3002<\\/p>\"],\"python3\":[\"Python3\",\"<p>\\u7248\\u672c\\uff1a<code>Python 3.11<\\/code><\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u5e38\\u7528\\u5e93\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8 \\u5bfc\\u5165\\uff0c\\u5982<a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/array.html\\\" target=\\\"_blank\\\">array<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/bisect.html\\\" target=\\\"_blank\\\">bisect<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/collections.html\\\" target=\\\"_blank\\\">collections<\\/a>\\u3002 \\u5982\\u679c\\u60a8\\u9700\\u8981\\u4f7f\\u7528\\u5176\\u4ed6\\u5e93\\u51fd\\u6570\\uff0c\\u8bf7\\u81ea\\u884c\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n<p>\\u5982\\u9700\\u4f7f\\u7528 Map\\/TreeMap \\u6570\\u636e\\u7ed3\\u6784\\uff0c\\u60a8\\u53ef\\u4f7f\\u7528 <a href=\\\"http:\\/\\/www.grantjenks.com\\/docs\\/sortedcontainers\\/\\\" target=\\\"_blank\\\">sortedcontainers<\\/a> \\u5e93\\u3002<\\/p>\"],\"scala\":[\"Scala\",\"<p>\\u7248\\u672c\\uff1a<code>Scala 3.3.1<\\/code><\\/p>\"],\"kotlin\":[\"Kotlin\",\"<p>\\u7248\\u672c\\uff1a<code>Kotlin 1.9.0<\\/code><\\/p>\\r\\n\\r\\n<p>\\u6211\\u4eec\\u4f7f\\u7528\\u7684\\u662f JetBrains \\u63d0\\u4f9b\\u7684 experimental compiler\\u3002\\u5982\\u679c\\u60a8\\u8ba4\\u4e3a\\u60a8\\u9047\\u5230\\u4e86\\u7f16\\u8bd1\\u5668\\u76f8\\u5173\\u7684\\u95ee\\u9898\\uff0c\\u8bf7\\u5411\\u6211\\u4eec\\u53cd\\u9988<\\/p>\"],\"rust\":[\"Rust\",\"<p>\\u7248\\u672c\\uff1a<code>rust 1.79.0<\\/code><\\/p>\\r\\n\\r\\n<p>\\u652f\\u6301 crates.io \\u7684 <a href=\\\"https:\\/\\/crates.io\\/crates\\/rand\\\" target=\\\"_blank\\\">rand<\\/a> \\u548c <a href=\\\"https:\\/\\/crates.io\\/crates\\/regex\\\" target=\\\"_blank\\\">regex<\\/a><\\/p>\"],\"php\":[\"PHP\",\"<p><code>PHP 8.2<\\/code>.<\\/p>\\r\\n\\r\\n<p>With bcmath module.<\\/p>\"],\"typescript\":[\"TypeScript\",\"<p>TypeScript 5.1.6<\\/p>\\r\\n\\r\\n<p>Compile Options: --alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2022<\\/p>\\r\\n\\r\\n<p><a href=\\\"https:\\/\\/lodash.com\\\" target=\\\"_blank\\\">lodash.js<\\/a> \\u5e93\\u5df2\\u7ecf\\u9ed8\\u8ba4\\u88ab\\u5305\\u542b\\u3002<\\/p>\\r\\n\\r\\n<p> \\u5982\\u9700\\u4f7f\\u7528\\u961f\\u5217\\/\\u4f18\\u5148\\u961f\\u5217\\uff0c\\u60a8\\u53ef\\u4f7f\\u7528 <a href=\\\"https:\\/\\/github.com\\/datastructures-js\\/priority-queue\\/blob\\/v5\\/README.md\\\" target=\\\"_blank\\\"> datastructures-js\\/priority-queue@5.4.0<\\/a>\\uff0c<a href=\\\"https:\\/\\/github.com\\/datastructures-js\\/queue\\/tree\\/v4.2.3\\\" target=\\\"_blank\\\"> datastructures-js\\/queue@4.2.3<\\/a> \\u4ee5\\u53ca <a href=\\\"https:\\/\\/github.com\\/datastructures-js\\/deque\\/tree\\/v1.0.4\\\" target=\\\"_blank\\\"> datastructures-js\\/deque@1.0.4<\\/a>\\u3002<\\/p>\"],\"racket\":[\"Racket\",\"<p><a href=\\\"https:\\/\\/docs.racket-lang.org\\/guide\\/performance.html#%28tech._c%29\\\" target=\\\"_blank\\\">Racket CS<\\/a> v8.15<\\/p>\\r\\n\\r\\n<p>\\u4f7f\\u7528 #lang racket<\\/p>\\r\\n\\r\\n<p>\\u5df2\\u9884\\u5148 (require data\\/gvector data\\/queue data\\/order data\\/heap). \\u82e5\\u9700\\u4f7f\\u7528\\u5176\\u5b83\\u6570\\u636e\\u7ed3\\u6784\\uff0c\\u53ef\\u81ea\\u884c require\\u3002<\\/p>\"],\"erlang\":[\"Erlang\",\"Erlang\\/OTP 26\"],\"elixir\":[\"Elixir\",\"Elixir 1.17 with Erlang\\/OTP 26\"],\"dart\":[\"Dart\",\"<p>Dart 3.2\\u3002\\u60a8\\u53ef\\u4ee5\\u4f7f\\u7528 <a href=\\\"https:\\/\\/pub.dev\\/packages\\/collection\\/versions\\/1.18.0\\\" target=\\\"_blank\\\">collection<\\/a> \\u5305<\\/p>\\r\\n\\r\\n<p>\\u60a8\\u7684\\u4ee3\\u7801\\u5c06\\u4f1a\\u88ab\\u4e0d\\u7f16\\u8bd1\\u76f4\\u63a5\\u8fd0\\u884c<\\/p>\"],\"cangjie\":[\"Cangjie\",\"<p>\\u7248\\u672c\\uff1a0.53.11 (cjnative)<\\/p>\\r\\n\\r\\n<p>\\u7f16\\u8bd1\\u53c2\\u6570\\uff1a<code>-O2 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