+20

# π[Challenge: Binary Palindromes]π

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 codingπ https://code.sololearn.com/cw7fCNo6ARLE/?ref=app

10/12/2017 6:32:37 AM

Jonas Schröter

+18

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

+13

here's mine... π https://code.sololearn.com/cLz46lT4X05U/?ref=app

+13

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

+12

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

+11

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

+10

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

+8

I am using the luxury of Python's inbuilt functions

+8

Yay for once I did something ahead of you sir!

+8

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

+7

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

+7

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

+6

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

+6

heres mine... one line https://code.sololearn.com/cBJrn7mqIWvG/?ref=app

+6

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

+6

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

+6

just for fun first created pallindromes via recursion after filtered result not better but different :-) https://code.sololearn.com/ciTmjrYmn26f

+6

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

+5

My solution with filter, lambda in python https://code.sololearn.com/cbkhSDFaof72

+5

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

+5

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