Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)That's it!
Tolu Atanda vivatolu
vivatolu
/ tree.md
Created
March 17, 2021 02:33
— forked from hrldcpr/tree.md
one-line tree in python
vivatolu
/ gist:2815d1b9915976cbd8cd
Created
November 25, 2015 15:41
http://www.freecodecamp.com/vivatolu 's solution for Bonfire: Check for Palindromes
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| // Bonfire: Check for Palindromes | |
| // Author: @vivatolu | |
| // Challenge: http://www.freecodecamp.com/challenges/bonfire-check-for-palindromes?solution=function%20palindrome(str)%20%7B%0A%20%20var%20n%20%3D%20str.toLowerCase()%3B%0A%20%20var%20m%20%3D%20n.replace(%2F%5B%5Ea-zA-Z0-9%5D%2B%2Fg%2C%20%27%27)%3B%0A%20%20var%20y%20%3D%200%3B%0A%20%20for(var%20x%20%3D%20(m.length%20-%201)%3B%20x%3Ey%3B%20x--%20%26%26%20y%2B%2B)%7B%0A%20%20%20%20if(m%5Bm.length%2F2%5D%20!%3D%3D%20m%5Bm.length%2F2%20-1%5D)%7B%0A%20%20%20%20%20%20return%20false%3B%0A%20%20%20%20%7Delse%20if(m%5Bx%5D%20%3D%3D%3D%20m%5By%5D)%7B%0A%09%09return%20true%3B%0A%09%7D%20else%20%7B%0A%09%09return%20false%3B%0A%09%7D%0A%0A%09%0A%7D%0A%7D%0Apalindrome(%22eye%22)%3B%0A%0A | |
| // Learn to Code at Free Code Camp (www.freecodecamp.com) | |
| function palindrome(str) { | |
| var n = str.toLowerCase(); | |
| var m = n.replace(/[^a-zA-Z0-9]+/g, ''); | |
| var y = 0; | |
| for(var x = (m.length - 1); x>y; x-- && y++){ |