Go Challenge 2 solution (don't look if you're participating)

<p>Here&#39;s my solution to the Go Challenge 2^*:</p> <p><a href="https://github.com/go-tcha/GoChallenge" rel="nofollow">https://github.com/go-tcha/GoChallenge</a></p> <p>How would you improve it?</p> <p>___</p> <p>^* I don&#39;t participate because of their discriminatory licensing rule.</p> <hr/>**评论：**<br/><br/>dgryski: <pre><p>Hi, can you please delete this as they <em>are</em> prizes available.</p></pre>go-tcha: <pre><p>I&#39;m sure the winners will outperform my humble attempt.</p></pre>dgryski: <pre><p>But it makes the judging more difficult. Disclaimer: I&#39;m one of the judges.</p></pre>htonl: <pre><p>You can&#39;t just wait until the challenge is over?</p></pre>go-tcha: <pre><p>You&#39;ve got my point.</p></pre>