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            "title": "守卫城堡",
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            "translatedTitle": "守卫城堡",
            "translatedContent": "城堡守卫游戏的胜利条件为使恶魔无法从出生点到达城堡。游戏地图可视作 `2*N` 的方格图，记作字符串数组 `grid`，其中：\n- `\".\"` 表示恶魔可随意通行的平地；\n- `\"#\"` 表示恶魔不可通过的障碍物，玩家可通过在 **平地** 上设置障碍物，即将  `\".\"` 变为 `\"#\"` 以阻挡恶魔前进；\n- `\"S\"` 表示恶魔出生点，将有大量的恶魔该点生成，恶魔可向上/向下/向左/向右移动，且无法移动至地图外；\n- `\"P\"` 表示瞬移点，移动到 `\"P\"` 点的恶魔可被传送至任意一个 `\"P\"` 点，也可选择不传送；\n- `\"C\"` 表示城堡。\n\n然而在游戏中用于建造障碍物的金钱是有限的，请返回玩家最少需要放置几个障碍物才能获得胜利。若无论怎样放置障碍物均无法获胜，请返回 `-1`。\n\n**注意：**\n- 地图上可能有一个或多个出生点\n- 地图上有且只有一个城堡\n\n**示例 1**\n>输入：`grid = [\"S.C.P#P.\", \".....#.S\"]`\n>\n>输出：`3`\n>\n>解释：至少需要放置三个障碍物\n![image.png](https://pic.leetcode-cn.com/1614828255-uuNdNJ-image.png)\n\n\n**示例 2：**\n>输入：`grid = [\"SP#P..P#PC#.S\", \"..#P..P####.#\"]`\n>\n>输出：`-1`\n>\n>解释：无论怎样修筑障碍物，均无法阻挡最左侧出生的恶魔到达城堡位置\n![image.png](https://pic.leetcode-cn.com/1614828208-oFlpVs-image.png)\n\n**示例 3：**\n>输入：`grid = [\"SP#.C.#PS\", \"P.#...#.P\"]`\n>\n>输出：`0`\n>\n>解释：无需放置障碍物即可获得胜利\n![image.png](https://pic.leetcode-cn.com/1614828242-oveClu-image.png)\n\n**示例 4：**\n>输入：`grid = [\"CP.#.P.\", \"...S..S\"]`\n>\n>输出：`4`\n>\n>解释：至少需要放置 4 个障碍物，示意图为放置方法之一\n![image.png](https://pic.leetcode-cn.com/1614828218-sIAYkb-image.png)\n\n\n**提示：**\n- `grid.length == 2`\n- `2 <= grid[0].length == grid[1].length <= 10^4`\n- `grid[i][j]` 仅包含字符 `\".\"`、`\"#\"`、`\"C\"`、`\"P\"`、`\"S\"`\n",
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            "__typename": "QuestionNode"
        }
    }
}