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How to Solve Fraction to Recurring Decimal Problem
Master the Fraction to Recurring Decimal LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsMedium#166
LeetCode ProblemFraction to Recurring Decimal
Given two integers representing the numerator and denominator of a fraction, return the fraction in string format. If the fractional part is repeating, enclose the repeating part in parentheses. If multiple answers are possible, return any of them. It is guaranteed that the length of the answer string is less than 104 for all the given inputs.
Hash TableMathString
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Problem Breakdown
Understanding the Fraction to Recurring Decimal Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
Given two integers representing the numerator and denominator of a fraction, return the fraction in string format. If the fractional part is repeating, enclose the repeating part in parentheses. If multiple answers are possible, return any of them. It is guaranteed that the length of the answer string is less than 104 for all the given inputs.
MediumProblem #166
LeetCodeFraction to Recurring Decimal
Related Topics
Hash TableMathString
How Phantom Code Helps
Get real-time assistance for Fraction to Recurring Decimal problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
numerator = 1, denominator = 2
Output
"0.5"
# Example 2
Input
numerator = 2, denominator = 1
Output
"2"
# Example 3
Input
numerator = 4, denominator = 333
Output
"0.(012)"
Constraints
-231 <= numerator, denominator <= 231 - 1
denominator != 0
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Solve Fraction to Recurring Decimal — Given two integers representing the numerator and denominator of a fraction, ret...
Here's the optimal approach using Hash Table:
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 Fraction to Recurring Decimal and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Fraction to Recurring Decimal 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 Fraction to Recurring Decimal?
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 Fraction to Recurring Decimal?
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 Fraction to Recurring Decimal 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 Fraction to Recurring Decimal 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 Fraction to Recurring Decimal 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 Fraction to Recurring Decimal 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 Fraction to Recurring Decimal 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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