{ "data": { "question": { "questionId": "793", "questionFrontendId": "777", "categoryTitle": "Algorithms", "boundTopicId": 1758, "title": "Swap Adjacent in LR String", "titleSlug": "swap-adjacent-in-lr-string", "content": "

In a string composed of 'L', 'R', and 'X' characters, like "RXXLRXRXL", a move consists of either replacing one occurrence of "XL" with "LX", or replacing one occurrence of "RX" with "XR". Given the starting string start and the ending string result, return True if and only if there exists a sequence of moves to transform start to result.

\n\n

 

\n

Example 1:

\n\n
\nInput: start = "RXXLRXRXL", result = "XRLXXRRLX"\nOutput: true\nExplanation: We can transform start to result following these steps:\nRXXLRXRXL ->\nXRXLRXRXL ->\nXRLXRXRXL ->\nXRLXXRRXL ->\nXRLXXRRLX\n
\n\n

Example 2:

\n\n
\nInput: start = "X", result = "L"\nOutput: false\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "在 LR 字符串中交换相邻字符", "translatedContent": "

在一个由 'L' , 'R' 和 'X' 三个字符组成的字符串（例如\"RXXLRXRXL\"）中进行移动操作。一次移动操作指用一个 \"LX\" 替换一个 \"XL\"，或者用一个 \"XR\" 替换一个 \"RX\"。现给定起始字符串 start 和结束字符串 result，请编写代码，当且仅当存在一系列移动操作使得 start 可以转换成 result 时， 返回 True。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：start = \"RXXLRXRXL\", result = \"XRLXXRRLX\"\n输出：true\n解释：通过以下步骤我们可以将 start 转化为 result：\nRXXLRXRXL ->\nXRXLRXRXL ->\nXRLXRXRXL ->\nXRLXXRRXL ->\nXRLXXRRLX\n
\n\n

示例 2：

\n\n
\n输入：start = \"X\", result = \"L\"\n输出：false\n
\n\n

 

\n\n

提示：

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