leetcode-cn/originData/6UEx57.json

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        "question": {
            "questionId": "1000439",
            "questionFrontendId": "LCP 56",
            "categoryTitle": "Algorithms",
            "boundTopicId": 1443277,
            "title": "信物传送",
            "titleSlug": "6UEx57",
            "content": "English description is not available for the problem. Please switch to Chinese.",
            "translatedTitle": "信物传送",
            "translatedContent": "欢迎各位勇者来到力扣城，本次试炼主题为「信物传送」。\n\n本次试炼场地设有若干传送带，`matrix[i][j]` 表示第 `i` 行 `j` 列的传送带运作方向，`\"^\",\"v\",\"<\",\">\"` 这四种符号分别表示 **上、下、左、右** 四个方向。信物会随传送带的方向移动。勇者**每一次**施法操作，可**临时**变更一处传送带的方向，在物品经过后传送带恢复原方向。\n![lcp (2).gif](https://pic.leetcode-cn.com/1649835246-vfupSL-lcp%20\\(2\\).gif){:width=300px}\n\n通关信物初始位于坐标 `start`处，勇者需要将其移动到坐标 `end` 处，请返回勇者施法操作的最少次数。\n\n\n\n**注意：**\n- `start` 和 `end` 的格式均为 `[i,j]`\n\n**示例 1:**\n> 输入：`matrix = [\">>v\",\"v^<\",\"<><\"], start = [0,1], end = [2,0]`\n>\n> 输出：`1`\n>\n> 解释：\n> 如上图所示\n> 当信物移动到 `[1,1]` 时，勇者施法一次将 `[1,1]` 的传送方向 `^` 从变更为 `<`\n> 从而信物移动到 `[1,0]`，后续到达 `end` 位置\n> 因此勇者最少需要施法操作 1 次\n\n**示例 2:**\n> 输入：`matrix = [\">>v\",\">>v\",\"^<<\"], start = [0,0], end = [1,1]`\n>\n> 输出：`0`\n>\n> 解释：勇者无需施法，信物将自动传送至 `end` 位置\n\n**示例 3:**\n> 输入：`matrix = [\">^^>\",\"<^v>\",\"^v^<\"], start = [0,0], end = [1,3]`\n>\n> 输出：`3`\n\n**提示：**\n- `matrix` 中仅包含 `'^'、'v'、'<'、'>'`\n- `0 < matrix.length <= 100`\n- `0 < matrix[i].length <= 100`\n- `0 <= start[0],end[0] < matrix.length`\n- `0 <= start[1],end[1] < matrix[i].length`\n\n",
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