Package g0701_0800.s0777_swap_adjacent_in_lr_string

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    777 - Swap Adjacent in LR String\.

    Medium

    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 end, return True if and only if there exists a sequence of moves to transform one string to the other.

    Example 1:

    Input: start = "RXXLRXRXL", end = "XRLXXRRLX"

    Output: true

    Explanation: We can transform start to end following these steps:

    RXXLRXRXL ->

    XRXLRXRXL ->

    XRLXRXRXL ->

    XRLXXRRXL ->

    XRLXXRRLX

    Example 2:

    Input: start = "X", end = "L"

    Output: false

    Constraints:

    • <code>1 <= start.length <= 10<sup>4</sup></code>

    • start.length == end.length

    • Both start and end will only consist of characters in 'L', 'R', and 'X'.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Boolean canTransform(String start, String end)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait