How to Solve Minimum Number of Flips to Make the Binary String Alternating Problem
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Minimum Number of Flips to Make the Binary String Alternating
You are given a binary string s. You are allowed to perform two types of operations on the string in any sequence: Type-1: Remove the character at the start of the string s and append it to the end of...
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Understanding the Minimum Number of Flips to Make the Binary String Alternating Problem
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Problem Statement
You are given a binary string s. You are allowed to perform two types of operations on the string in any sequence: Type-1: Remove the character at the start of the string s and append it to the end of the string. Type-2: Pick any character in s and flip its value, i.e., if its value is '0' it becomes '1' and vice-versa. Return the minimum number of type-2 operations you need to perform such that s becomes alternating. The string is called alternating if no two adjacent characters are equal. For example, the strings "010" and "1010" are alternating, while the string "0100" is not.
Minimum Number of Flips to Make the Binary String Alternating
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Examples
s = "111000"2Use the first operation two times to make s = "100011". Then, use the second operation on the third and sixth elements to make s = "101010".
s = "010"0The string is already alternating.
s = "1110"1Use the second operation on the second element to make s = "1010".
Constraints
1 <= s.length <= 105s[i] is either '0' or '1'.How Interview Coder Helps with Leetcode Problems
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