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How to Solve Lexicographically Smallest Beautiful String Problem
Master the Lexicographically Smallest Beautiful String LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsHard#2663
LeetCode ProblemLexicographically Smallest Beautiful String
A string is beautiful if: You are given a beautiful string s of length n and a positive integer k. Return the lexicographically smallest string of length n, which is larger than s and is beautiful. If there is no such string, return an empty string. A string a is lexicographically larger than a string b (of the same length) if in the first position where a and b differ, a has a character strictly larger than the corresponding character in b.
StringGreedy
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Problem Breakdown
Understanding the Lexicographically Smallest Beautiful String Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
A string is beautiful if: You are given a beautiful string s of length n and a positive integer k. Return the lexicographically smallest string of length n, which is larger than s and is beautiful. If there is no such string, return an empty string. A string a is lexicographically larger than a string b (of the same length) if in the first position where a and b differ, a has a character strictly larger than the corresponding character in b.
HardProblem #2663
LeetCodeLexicographically Smallest Beautiful String
Related Topics
StringGreedy
How Phantom Code Helps
Get real-time assistance for Lexicographically Smallest Beautiful String problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
s = "abcz", k = 26
Output
"abda"
# Example 2
Input
s = "dc", k = 4
Output
""
Constraints
1 <= n == s.length <= 105
4 <= k <= 26
s is a beautiful string.
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Solve Lexicographically Smallest Beautiful String — A string is beautiful if: You are given a beautiful string s of length n and a p...
Here's the optimal approach using String:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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Frequently Asked Questions
Common questions about solving Lexicographically Smallest Beautiful String and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Lexicographically Smallest Beautiful String 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 Lexicographically Smallest Beautiful String?
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 Lexicographically Smallest Beautiful String?
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 Lexicographically Smallest Beautiful String 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 Lexicographically Smallest Beautiful String 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 Lexicographically Smallest Beautiful String 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 Lexicographically Smallest Beautiful String 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 Lexicographically Smallest Beautiful String 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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