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How to Solve Longest Common Suffix Queries Problem
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LeetCode ProblemLongest Common Suffix Queries
You are given two arrays of strings wordsContainer and wordsQuery. For each wordsQuery[i], you need to find a string from wordsContainer that has the longest common suffix with wordsQuery[i]. If there are two or more strings in wordsContainer that share the longest common suffix, find the string that is the smallest in length. If there are two or more such strings that have the same smallest length, find the one that occurred earlier in wordsContainer. Return an array of integers ans, where ans[i] is the index of the string in wordsContainer that has the longest common suffix with wordsQuery[i].
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Problem Breakdown
Understanding the Longest Common Suffix Queries Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given two arrays of strings wordsContainer and wordsQuery. For each wordsQuery[i], you need to find a string from wordsContainer that has the longest common suffix with wordsQuery[i]. If there are two or more strings in wordsContainer that share the longest common suffix, find the string that is the smallest in length. If there are two or more such strings that have the same smallest length, find the one that occurred earlier in wordsContainer. Return an array of integers ans, where ans[i] is the index of the string in wordsContainer that has the longest common suffix with wordsQuery[i].
Examples
# Example 1
Input
wordsContainer = ["abcd","bcd","xbcd"], wordsQuery = ["cd","bcd","xyz"]
Output
[1,1,1]
# Example 2
Input
wordsContainer = ["abcdefgh","poiuygh","ghghgh"], wordsQuery = ["gh","acbfgh","acbfegh"]
Output
[2,0,2]
Constraints
1 <= wordsContainer.length, wordsQuery.length <= 104
1 <= wordsContainer[i].length <= 5 * 103
1 <= wordsQuery[i].length <= 5 * 103
wordsContainer[i] consists only of lowercase English letters.
wordsQuery[i] consists only of lowercase English letters.
Sum of wordsContainer[i].length is at most 5 * 105.
Sum of wordsQuery[i].length is at most 5 * 105.
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Solve Longest Common Suffix Queries — You are given two arrays of strings wordsContainer and wordsQuery. For each word...
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def solve(input):
# Optimal O(n) solution
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Frequently Asked Questions
Common questions about solving Longest Common Suffix Queries and using PhantomCodeAI during coding interviews.
How does PhantomCodeAI help me solve coding problems like Longest Common Suffix Queries during interviews?
PhantomCodeAI generates complete solutions instantly with proper complexity analysis, letting you focus on explaining your approach and demonstrating problem-solving skills rather than getting stuck on implementation details during high-pressure situations.
What if the interviewer asks follow-up questions or modifications to problems like Longest Common Suffix Queries?
PhantomCodeAI adapts in real-time. Screenshot the modified problem or use audio mode to capture the interviewer's follow-up, and get an updated solution within seconds — including edge cases and optimizations.
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Yes. PhantomCodeAI provides step-by-step approach explanations with 3 progressive thoughts, so you can walk through your solution naturally. It also provides time and space complexity analysis to discuss trade-offs.
How does PhantomCodeAI assist with different programming languages for Longest Common Suffix Queries type problems?
PhantomCodeAI supports 11 programming languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set your preferred language and get idiomatic solutions.
What coding mistakes does PhantomCodeAI help me avoid during Longest Common Suffix Queries interviews?
PhantomCodeAI catches common mistakes like off-by-one errors, missing edge cases, incorrect base conditions, and suboptimal approaches. It provides clean, well-structured code that handles all edge cases.
Is PhantomCodeAI detectable when solving problems like Longest Common Suffix Queries during live interviews?
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How does PhantomCodeAI help when I'm struggling with Longest Common Suffix Queries style questions under pressure?
The AI provides structured guidance: first the approach (what algorithm/data structure to use and why), then the implementation with clean code, and finally complexity analysis. This helps you think clearly even under pressure.
Does PhantomCodeAI work for the coding platforms used in Longest Common Suffix Queries interviews?
Yes. PhantomCodeAI works with all major coding platforms including LeetCode, HackerRank, CodeSignal, CoderPad, HackerEarth, and any browser-based coding environment.
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