How to Solve Minimum Length of String After Operations Problem
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Minimum Length of String After Operations
You are given a string s. You can perform the following process on s any number of times: Choose an index i in the string such that there is at least one character to the left of index i that is equal...
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Understanding the Minimum Length of String After Operations Problem
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Problem Statement
You are given a string s. You can perform the following process on s any number of times: Choose an index i in the string such that there is at least one character to the left of index i that is equal to s[i], and at least one character to the right that is also equal to s[i]. Delete the closest occurrence of s[i] located to the left of i. Delete the closest occurrence of s[i] located to the right of i. Return the minimum length of the final string s that you can achieve.
Minimum Length of String After Operations
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Examples
s = "abaacbcbb"5We do the following operations: Choose index 2, then remove the characters at indices 0 and 3. The resulting string is s = "bacbcbb". Choose index 3, then remove the characters at indices 0 and 5. The resulting string is s = "acbcb".
s = "aa"2We cannot perform any operations, so we return the length of the original string.
Constraints
1 <= s.length <= 2 * 105s consists only of lowercase English letters.How Interview Coder Helps with Leetcode Problems
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