How to Solve Longest Common Prefix Between Adjacent Strings After Removals Problem
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Longest Common Prefix Between Adjacent Strings After Removals
You are given an array of strings words. For each index i in the range [0, words.length - 1], perform the following steps: Remove the element at index i from the words array. Compute the length of the...
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Understanding the Longest Common Prefix Between Adjacent Strings After Removals Problem
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Problem Statement
You are given an array of strings words. For each index i in the range [0, words.length - 1], perform the following steps: Remove the element at index i from the words array. Compute the length of the longest common prefix among all adjacent pairs in the modified array. Return an array answer, where answer[i] is the length of the longest common prefix between the adjacent pairs after removing the element at index i. If no adjacent pairs remain or if none share a common prefix, then answer[i] should be 0.
Longest Common Prefix Between Adjacent Strings After Removals
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Examples
words = ["jump","run","run","jump","run"][3,0,0,3,3]Removing index 0: words becomes ["run", "run", "jump", "run"] Longest adjacent pair is ["run", "run"] having a common prefix "run" (length 3) Removing index 1: words becomes ["jump", "run", "jump", "run"] No adjacent pairs share a common prefix (length 0) Removing index 2: words becomes ["jump", "run", "jump", "run"] No adjacent pairs share a common prefix (length 0) Removing index 3: words becomes ["jump", "run", "run", "run"] Longest adjacent pair is ["run", "run"] having a common prefix "run" (length 3) Removing index 4: words becomes ["jump", "run", "run", "jump"] Longest adjacent pair is ["run", "run"] having a common prefix "run" (length 3)
words = ["dog","racer","car"][0,0,0]Removing any index results in an answer of 0.
Constraints
1 <= words.length <= 1051 <= words[i].length <= 104words[i] consists of lowercase English letters.The sum of words[i].length is smaller than or equal 105.How Interview Coder Helps with Leetcode Problems
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