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How to Solve Count The Repetitions Problem
Master the Count The Repetitions LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsHard#466
LeetCode ProblemCount The Repetitions
We define str = [s, n] as the string str which consists of the string s concatenated n times. We define that string s1 can be obtained from string s2 if we can remove some characters from s2 such that it becomes s1. You are given two strings s1 and s2 and two integers n1 and n2. You have the two strings str1 = [s1, n1] and str2 = [s2, n2]. Return the maximum integer m such that str = [str2, m] can be obtained from str1.
StringDynamic Programming
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Problem Breakdown
Understanding the Count The Repetitions Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
We define str = [s, n] as the string str which consists of the string s concatenated n times. We define that string s1 can be obtained from string s2 if we can remove some characters from s2 such that it becomes s1. You are given two strings s1 and s2 and two integers n1 and n2. You have the two strings str1 = [s1, n1] and str2 = [s2, n2]. Return the maximum integer m such that str = [str2, m] can be obtained from str1.
HardProblem #466
LeetCodeCount The Repetitions
Related Topics
StringDynamic Programming
How Phantom Code Helps
Get real-time assistance for Count The Repetitions problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
s1 = "acb", n1 = 4, s2 = "ab", n2 = 2
Output
2
# Example 2
Input
s1 = "acb", n1 = 1, s2 = "acb", n2 = 1
Output
1
Constraints
1 <= s1.length, s2.length <= 100
s1 and s2 consist of lowercase English letters.
1 <= n1, n2 <= 106
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Solve Count The Repetitions — We define str = [s, n] as the string str which consists of the string s concaten...
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 Count The Repetitions and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Count The Repetitions 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 Count The Repetitions?
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 Count The Repetitions?
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 Count The Repetitions 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 Count The Repetitions 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 Count The Repetitions 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 Count The Repetitions 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 Count The Repetitions 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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