Python Program to Remove Rightmost Set Bit with Explanation
Python
Medium
Operators
18 views
1 min read
88 words
This problem helps you practice core Python fundamentals in a practical way. It builds intuition around one, remove, rightmost. Let’s break it down step by step so you can implement it confidently.
Problem Statement
One non-negative integer n is provided (n>0). Remove the rightmost set bit once and output the new number.
Input Format
One integer n.
Output Format
One integer.
Constraints
1
Code Solution
This explanation is written for learning purposes and to help beginners understand the concept clearly.
import sys
s=sys.stdin.read().strip()
if not s: sys.exit(0)
n=int(s)
sys.stdout.write(str(n & (n-1)))
Common Mistakes
- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).
Solution Guide
Problem
One non-negative integer n is provided (n>0). Remove the rightmost set bit once and output the new number.
Details
Common Mistakes
- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).
Official Solution
import sys
s=sys.stdin.read().strip()
if not s: sys.exit(0)
n=int(s)
sys.stdout.write(str(n & (n-1)))
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