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How to Solve Minimum Deletions to Make String K-Special Problem
Master the Minimum Deletions to Make String K-Special LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsMedium#3085
LeetCode ProblemMinimum Deletions to Make String K-Special
You are given a string word and an integer k. We consider word to be k-special if |freq(word[i]) - freq(word[j])| <= k for all indices i and j in the string. Here, freq(x) denotes the frequency of the character x in word, and |y| denotes the absolute value of y. Return the minimum number of characters you need to delete to make word k-special.
Hash TableStringGreedySortingCounting
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Problem Breakdown
Understanding the Minimum Deletions to Make String K-Special Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given a string word and an integer k. We consider word to be k-special if |freq(word[i]) - freq(word[j])| <= k for all indices i and j in the string. Here, freq(x) denotes the frequency of the character x in word, and |y| denotes the absolute value of y. Return the minimum number of characters you need to delete to make word k-special.
MediumProblem #3085
LeetCodeMinimum Deletions to Make String K-Special
Related Topics
Hash TableStringGreedySortingCounting
How Phantom Code Helps
Get real-time assistance for Minimum Deletions to Make String K-Special problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
word = "aabcaba", k = 0
Output
3
# Example 2
Input
word = "dabdcbdcdcd", k = 2
Output
2
# Example 3
Input
word = "aaabaaa", k = 2
Output
1
Constraints
1 <= word.length <= 105
0 <= k <= 105
word consists only of lowercase English letters.
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Solve Minimum Deletions to Make String K-Special — You are given a string word and an integer k. We consider word to be k-special i...
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def solve(input):
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Frequently Asked Questions
Common questions about solving Minimum Deletions to Make String K-Special and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Minimum Deletions to Make String K-Special 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 Minimum Deletions to Make String K-Special?
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 Minimum Deletions to Make String K-Special?
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 Minimum Deletions to Make String K-Special 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 Minimum Deletions to Make String K-Special 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 Minimum Deletions to Make String K-Special 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 Minimum Deletions to Make String K-Special 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 Minimum Deletions to Make String K-Special 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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