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How to Solve Kth Distinct String in an Array Problem
Master the Kth Distinct String in an Array LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsEasy#2053
LeetCode ProblemKth Distinct String in an Array
A distinct string is a string that is present only once in an array. Given an array of strings arr, and an integer k, return the kth distinct string present in arr. If there are fewer than k distinct strings, return an empty string "". Note that the strings are considered in the order in which they appear in the array.
ArrayHash TableStringCounting
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Problem Breakdown
Understanding the Kth Distinct String in an Array Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
A distinct string is a string that is present only once in an array. Given an array of strings arr, and an integer k, return the kth distinct string present in arr. If there are fewer than k distinct strings, return an empty string "". Note that the strings are considered in the order in which they appear in the array.
EasyProblem #2053
LeetCodeKth Distinct String in an Array
Related Topics
ArrayHash TableStringCounting
How Phantom Code Helps
Get real-time assistance for Kth Distinct String in an Array problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
arr = ["d","b","c","b","c","a"], k = 2
Output
"a"
# Example 2
Input
arr = ["aaa","aa","a"], k = 1
Output
"aaa"
# Example 3
Input
arr = ["a","b","a"], k = 3
Output
""
Constraints
1 <= k <= arr.length <= 1000
1 <= arr[i].length <= 5
arr[i] consists of lowercase English letters.
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Solve Kth Distinct String in an Array — A distinct string is a string that is present only once in an array. Given an ar...
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Frequently Asked Questions
Common questions about solving Kth Distinct String in an Array and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Kth Distinct String in an Array during interviews?
Phantom Code 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 Kth Distinct String in an Array?
Phantom Code 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.
Can Phantom Code help me communicate my solution for problems like Kth Distinct String in an Array?
Yes. Phantom Code 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 Phantom Code assist with different programming languages for Kth Distinct String in an Array type problems?
Phantom Code 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 Phantom Code help me avoid during Kth Distinct String in an Array interviews?
Phantom Code 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 Phantom Code detectable when solving problems like Kth Distinct String in an Array during live interviews?
No. Phantom Code runs as an invisible desktop overlay that doesn't appear in screen shares, recordings, or proctoring software. It works with Zoom, HackerRank, CodeSignal, CoderPad, and all major platforms.
How does Phantom Code help when I'm struggling with Kth Distinct String in an Array 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 Phantom Code work for the coding platforms used in Kth Distinct String in an Array interviews?
Yes. Phantom Code works with all major coding platforms including LeetCode, HackerRank, CodeSignal, CoderPad, HackerEarth, and any browser-based coding environment.
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