本文介绍: You are given a string consisting of characters which are either or .A move is defined as selecting three consecutive characters of and converting them to . Note that if a move is applied to the character , it will stay the same.Return the minimum numb
Question:
You are given a string s consisting of n characters which are either 'X' or 'O'.
A move is defined as selecting three consecutive characters of s and converting them to 'O'. Note that if a move is applied to the character 'O', it will stay the same.
Return the minimum number of moves required so that all the characters of s are converted to 'O'.
Example 1:
Example 2:
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