mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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198 lines
21 KiB
JSON
198 lines
21 KiB
JSON
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"questionFrontendId": "剑指 Offer II 110",
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"categoryTitle": "LCOF2",
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"boundTopicId": 910297,
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"title": "所有路径",
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"titleSlug": "bP4bmD",
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"content": "<p>English description is not available for the problem. Please switch to Chinese.</p>\n",
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"translatedTitle": "所有路径",
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"translatedContent": "<p>给定一个有 <code>n</code> 个节点的有向无环图，用二维数组 <code>graph</code> 表示，请找到所有从 <code>0</code> 到 <code>n-1</code> 的路径并输出（不要求按顺序）。</p>\n\n<p><code>graph</code> 的第 <code>i</code> 个数组中的单元都表示有向图中 <code>i</code> 号节点所能到达的下一些结点（译者注：有向图是有方向的，即规定了 a→b 你就不能从 b→a ），若为空，就是没有下一个节点了。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/28/all_1.jpg\" style=\"height: 242px; width: 242px;\" /></p>\n\n<pre>\n<strong>输入：</strong>graph = [[1,2],[3],[3],[]]\n<strong>输出：</strong>[[0,1,3],[0,2,3]]\n<strong>解释：</strong>有两条路径 0 -> 1 -> 3 和 0 -> 2 -> 3\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/28/all_2.jpg\" style=\"height: 301px; width: 423px;\" /></p>\n\n<pre>\n<strong>输入：</strong>graph = [[4,3,1],[3,2,4],[3],[4],[]]\n<strong>输出：</strong>[[0,4],[0,3,4],[0,1,3,4],[0,1,2,3,4],[0,1,4]]\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>graph = [[1],[]]\n<strong>输出：</strong>[[0,1]]\n</pre>\n\n<p><strong>示例 4：</strong></p>\n\n<pre>\n<strong>输入：</strong>graph = [[1,2,3],[2],[3],[]]\n<strong>输出：</strong>[[0,1,2,3],[0,2,3],[0,3]]\n</pre>\n\n<p><strong>示例 5：</strong></p>\n\n<pre>\n<strong>输入：</strong>graph = [[1,3],[2],[3],[]]\n<strong>输出：</strong>[[0,1,2,3],[0,3]]\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>n == graph.length</code></li>\n\t<li><code>2 <= n <= 15</code></li>\n\t<li><code>0 <= graph[i][j] < n</code></li>\n\t<li><code>graph[i][j] != i</code> </li>\n\t<li>保证输入为有向无环图 <code>(GAD)</code></li>\n</ul>\n\n<p> </p>\n\n<p><meta charset=\"UTF-8\" />注意：本题与主站 797 题相同：<a href=\"https://leetcode-cn.com/problems/all-paths-from-source-to-target/\">https://leetcode-cn.com/problems/all-paths-from-source-to-target/</a></p>\n",
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