{ "data": { "question": { "questionId": "100096", "questionFrontendId": "LCP 03", "categoryTitle": "Algorithms", "boundTopicId": 23589, "title": "Programmable Robot", "titleSlug": "programmable-robot", "content": "

English description is not available. Please switch to Chinese.

\r\n", "translatedTitle": "机器人大冒险", "translatedContent": "

力扣团队买了一个可编程机器人，机器人初始位置在原点(0, 0)。小伙伴事先给机器人输入一串指令command，机器人就会无限循环这条指令的步骤进行移动。指令有两种：

\n\n
    \n\t
  1. U: 向y轴正方向移动一格
    2. \n\t
  2. R: 向x轴正方向移动一格。
    3. \n
\n\n

不幸的是，在 xy 平面上还有一些障碍物，他们的坐标用obstacles表示。机器人一旦碰到障碍物就会被损毁。

\n\n

给定终点坐标(x, y)，返回机器人能否完好地到达终点。如果能，返回true；否则返回false。

\n\n

 

\n\n

示例 1：

\n\n
输入：command = "URR", obstacles = [], x = 3, y = 2\n输出：true\n解释：U(0, 1) -> R(1, 1) -> R(2, 1) -> U(2, 2) -> R(3, 2)。
\n\n

示例 2：

\n\n
输入：command = "URR", obstacles = [[2, 2]], x = 3, y = 2\n输出：false\n解释：机器人在到达终点前会碰到(2, 2)的障碍物。
\n\n

示例 3：

\n\n
输入：command = "URR", obstacles = [[4, 2]], x = 3, y = 2\n输出：true\n解释：到达终点后，再碰到障碍物也不影响返回结果。
\n\n

 

\n\n

限制：

\n\n
    \n\t
  1. 2 <= command的长度 <= 1000
    2. \n\t
  2. command由U，R构成，且至少有一个U，至少有一个R
    3. \n\t
  3. 0 <= x <= 1e9, 0 <= y <= 1e9
    4. \n\t
  4. 0 <= obstacles的长度 <= 1000
    5. \n\t
  5. obstacles[i]不为原点或者终点
    6. \n
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