mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-11 11:08:15 +08:00
192 lines
20 KiB
JSON
192 lines
20 KiB
JSON
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"title": "路径的数目",
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"translatedContent": "<p>一个机器人位于一个 <code>m x n</code><em> </em>网格的左上角 （起始点在下图中标记为 “Start” ）。</p>\n\n<p>机器人每次只能向下或者向右移动一步。机器人试图达到网格的右下角（在下图中标记为 “Finish” ）。</p>\n\n<p>问总共有多少条不同的路径？</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img src=\"https://assets.leetcode.com/uploads/2018/10/22/robot_maze.png\" /></p>\n\n<pre>\n<strong>输入：</strong>m = 3, n = 7\n<strong>输出：</strong>28</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>m = 3, n = 2\n<strong>输出：</strong>3\n<strong>解释：</strong>\n从左上角开始，总共有 3 条路径可以到达右下角。\n1. 向右 -> 向下 -> 向下\n2. 向下 -> 向下 -> 向右\n3. 向下 -> 向右 -> 向下\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>m = 7, n = 3\n<strong>输出：</strong>28\n</pre>\n\n<p><strong>示例 4：</strong></p>\n\n<pre>\n<strong>输入：</strong>m = 3, n = 3\n<strong>输出：</strong>6</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= m, n <= 100</code></li>\n\t<li>题目数据保证答案小于等于 <code>2 * 10<sup>9</sup></code></li>\n</ul>\n\n<p> </p>\n\n<p><meta charset=\"UTF-8\" />注意：本题与主站 62 题相同： <a href=\"https://leetcode-cn.com/problems/unique-paths/\">https://leetcode-cn.com/problems/unique-paths/</a></p>\n",
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