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How to Solve Prime Number of Set Bits in Binary Representation Problem
Master the Prime Number of Set Bits in Binary Representation LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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LeetCode ProblemPrime Number of Set Bits in Binary Representation
Given two integers left and right, return the count of numbers in the inclusive range [left, right] having a prime number of set bits in their binary representation. Recall that the number of set bits an integer has is the number of 1's present when written in binary.
MathBit Manipulation
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Problem Breakdown
Understanding the Prime Number of Set Bits in Binary Representation Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
Given two integers left and right, return the count of numbers in the inclusive range [left, right] having a prime number of set bits in their binary representation. Recall that the number of set bits an integer has is the number of 1's present when written in binary.
EasyProblem #762
LeetCodePrime Number of Set Bits in Binary Representation
Related Topics
MathBit Manipulation
How Phantom Code Helps
Get real-time assistance for Prime Number of Set Bits in Binary Representation problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
left = 6, right = 10
Output
4
# Example 2
Input
left = 10, right = 15
Output
5
Constraints
1 <= left <= right <= 106
0 <= right - left <= 104
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Solve Prime Number of Set Bits in Binary Representation — Given two integers left and right, return the count of numbers in the inclusive ...
Here's the optimal approach using Math:
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 Prime Number of Set Bits in Binary Representation and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Prime Number of Set Bits in Binary Representation 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 Prime Number of Set Bits in Binary Representation?
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 Prime Number of Set Bits in Binary Representation?
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 Prime Number of Set Bits in Binary Representation 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 Prime Number of Set Bits in Binary Representation 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 Prime Number of Set Bits in Binary Representation 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 Prime Number of Set Bits in Binary Representation 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 Prime Number of Set Bits in Binary Representation 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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