🏁[Challenge: Binary Palindromes]🏁

Question

Find all numbers till a given n whose binary string is a palindrome.
Example:
3 --> 11
5 --> 101
...
Run the code for more examples, any language is welcome. Happy coding😊

https://code.sololearn.com/cw7fCNo6ARLE/?ref=app

Answer 1

My try:
https://code.sololearn.com/W85xrNeoxaKR/?ref=app

Answer 2

here's mine... 🐍
https://code.sololearn.com/cLz46lT4X05U/?ref=app

Answer 3

my C# version...
https://code.sololearn.com/c084t8eKgvB3/?ref=app

Answer 4

* My try in Ruby:
https://code.sololearn.com/c1mE3f8Saxsq/#rb

Answer 5

Python one-liner
https://code.sololearn.com/ceOJ8XCOCi1R/?ref=app

Answer 6

https://code.sololearn.com/cWzApH7G2f5S/?ref=app
Did a little extension

Answer 7

I am using the luxury of Python's inbuilt functions

Answer 8

Yay for once I did something ahead of you sir!

Answer 9

Here's:
https://code.sololearn.com/cZmkePcB0WVi/?ref=app

Answer 10

Here is my Java realization
https://code.sololearn.com/cDdTCq0T9Y1P/?ref=app

Answer 11

https://code.sololearn.com/cbe7prt0qK3k/?ref=app

Answer 12

Number.prototype.pd = function() {
return [...Array(+this).keys()].map(v=> v.toString(2)).filter(c=> c==c.split('').reverse().join(''));
}

https://code.sololearn.com/WBo2vfcCk1B1/?ref=app

Answer 13

heres mine...

one line

https://code.sololearn.com/cBJrn7mqIWvG/?ref=app

Answer 14

My try on java
https://code.sololearn.com/chtNy9k07R3e/?ref=app

Answer 15

https://code.sololearn.com/cVTB196TCE8J/#cpp

Cpp solution

Answer 16

just for fun
first created pallindromes via recursion
after filtered result

not better but different :-)
https://code.sololearn.com/ciTmjrYmn26f

Answer 17

Here you go. Checks for valid input
https://code.sololearn.com/cdrxWnR6E0I4/?ref=app

Answer 18

My solution with filter, lambda in python

https://code.sololearn.com/cbkhSDFaof72

Answer 19

https://code.sololearn.com/c7OfyCMokz3a/?ref=app

Answer 20

https://code.sololearn.com/cMk2eExvRfCA/?ref=app
my code using cpp