How to Solve Resulting String After Adjacent Removals Problem
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Resulting String After Adjacent Removals
You are given a string s consisting of lowercase English letters. You must repeatedly perform the following operation while the string s has at least two consecutive characters: Remove the leftmost pa...
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Understanding the Resulting String After Adjacent Removals Problem
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Problem Statement
You are given a string s consisting of lowercase English letters. You must repeatedly perform the following operation while the string s has at least two consecutive characters: Remove the leftmost pair of adjacent characters in the string that are consecutive in the alphabet, in either order (e.g., 'a' and 'b', or 'b' and 'a'). Shift the remaining characters to the left to fill the gap. Return the resulting string after no more operations can be performed. Note: Consider the alphabet as circular, thus 'a' and 'z' are consecutive.
Resulting String After Adjacent Removals
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Examples
s = "abc""c"Remove "ab" from the string, leaving "c" as the remaining string. No further operations are possible. Thus, the resulting string after all possible removals is "c".
s = "adcb"""Remove "dc" from the string, leaving "ab" as the remaining string. Remove "ab" from the string, leaving "" as the remaining string. No further operations are possible. Thus, the resulting string after all possible removals is "".
s = "zadb""db"Remove "za" from the string, leaving "db" as the remaining string. No further operations are possible. Thus, the resulting string after all possible removals is "db".
Constraints
1 <= s.length <= 105s consists only of lowercase English letters.How Interview Coder Helps with Leetcode Problems
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