Class Solution

  • All Implemented Interfaces:

    
    public final class Solution
    
                        

    2380 - Time Needed to Rearrange a Binary String.

    Medium

    You are given a binary string s. In one second, all occurrences of "01" are simultaneously replaced with "10". This process repeats until no occurrences of "01" exist.

    Return the number of seconds needed to complete this process.

    Example 1:

    Input: s = "0110101"

    Output: 4

    Explanation:

    After one second, s becomes "1011010".

    After another second, s becomes "1101100".

    After the third second, s becomes "1110100".

    After the fourth second, s becomes "1111000".

    No occurrence of "01" exists any longer, and the process needed 4 seconds to complete, so we return 4.

    Example 2:

    Input: s = "11100"

    Output: 0

    Explanation: No occurrence of "01" exists in s, and the processes needed 0 seconds to complete, so we return 0.

    Constraints:

    • 1 <= s.length <= 1000

    • s[i] is either '0' or '1'.

    Follow up:

    Can you solve this problem in O(n) time complexity?

    • 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 Integer secondsToRemoveOccurrences(String s)
      • Methods inherited from class java.lang.Object

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