Palindromic Binary Representation

Asked in:
Amazon

Problem Description

Given an integer A find the A^th number whose binary representation is a palindrome.

NOTE:

Consider the 1^st number whose binary representation is palindrome as 1, instead of 0
Do not consider the leading zeros, while considering the binary representation.

Problem Constraints

1 <= A <= 210⁴

Input Format
First and only argument is an integer A.

Output Format
Return an integer denoting the A^th number whose binary representation is a palindrome.

Example Input
Input 1:

A = 1

Input 1:

A = 9

Example Output
Output 1:

1

Output 2:

27

Example Explanation*

Explanation 1:

 1^st Number whose binary representation is palindrome is 1

Explanation 2

 9^th Number whose binary representation is palindrome is 27 (11011)

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.

Start solving Palindromic Binary Representation on Interview Code Editor

Hints

Hint 1
Solution Approach
Complete Solution

Asked In:

Amazon

Palindromic Binary Representation

Discussion