036 Double-base palindromes.sf

#!/usr/bin/ruby

# Daniel "Trizen" Șuteu
# https://github.com/trizen

# Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2.

# https://projecteuler.net/problem=36

# Runtime: 3.153s

var sum = 0

1e6.times {|n|
    if (n.is_palindrome && n.is_palindrome(2)) {
        sum += n
    }
}

say sum