Solved ProjectEuler/016: php, ruby

ProjectEuler/016/desc.yml

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+title: What is the sum of the digits of the number 2^1000?
+url: http://projecteuler.net/problem=16
+
+desc: |
+  2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.
+  What is the sum of the digits of the number 2^1000?
+  
+solution: |
+  Bruteforce
+
+solutions:
+  solve.php:
+    desc: Using BCMath to cope with large numbers
+    language: php
+  solve.rb:
+    desc: Basic solution
+    language: ruby

ProjectEuler/016/solve.php

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+<?php
+$num = bcpow(2,1000);
+$sum = 0;
+for($c =0; $c < strlen($num);$c++) {
+	$sum += $num[$c];
+}
+echo $sum;

ProjectEuler/016/solve.rb

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+num = 2 ** 1000
+sum = 0 
+num.to_s.chars do |digit|
+	sum += digit.to_i
+end
+puts sum