Solved ProjectEuler/035

ProjectEuler/036/desc.yml

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+title: Find the sum of all numbers less than one million, which are palindromic in base 10 and base 2.
+url: http://projecteuler.net/problem=36
+
+desc: |
+  The decimal number, 585 = 1001001001 (binary), is palindromic in both bases.
+  Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2.
+  (Please note that the palindromic number, in either base, may not include leading zeros.)
+
+solution: We can skip all even numbers since a even number would end in binary 10 - In reverse that would be 01 and we are told to skip leading 0's
+
+solutions:
+  solve.php:
+    desc: Basic solution
+    language: php
+  solve.rb:
+    desc: Basic solution in Ruby
+    language: ruby
+

ProjectEuler/036/solve.php

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+<?php
+define('MAX',1000000);
+$result = 0;
+for($i=1;$i<MAX;$i+=2) {
+	if($i == strrev($i)) {
+		$bin = decbin($i);
+		if($bin == strrev($bin)) {
+			$result += $i;
+		}
+	}
+}
+echo $result;

ProjectEuler/036/solve.rb

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+MAX = 1000000
+result = 0
+(1..MAX).step(2) { |i|
+	if(i.to_s == i.to_s.reverse) 
+		if(i.to_s(2) == i.to_s(2).reverse) 
+			result += i
+		end
+	end
+}
+print result