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copied!<p>This is how i would do it :</p> <ol> <li><p>First, i would just sort the teams based on their points. As you said, that is kinda trivial.</p></li> <li><p>Then, i would traverse the sorted array and check possible teams that have the same points. This would show in a new array of hashes. For each set of teams that i would find that have the same points, i would denote with a hash. Think of 3 competing teams :</p></li> </ol> <blockquote> <pre><code>{ :TeamA => 3, :TeamB => 2 } { :TeamA => 3, :TeamC => 4 } { :TeamB => 1, :TeamC => 0 } </code></pre> </blockquote> <ol> <li>Now, i would sort. To make things easy, you can have a max or min element (representing a team each time). </li> </ol> <p>Traversing with max :</p> <pre><code>1. max = TeamA 2. max = TeamC </code></pre> <p>So strongest team is TeamC. Eliminate that team and repeat. The last 2 hashes are now eliminated and we are just left with the first, which shows that TeamA > TeamB. So, the final sorting would be :</p> <p>TeamC > TeamA > TeamB</p> <p><strong>NOTICE</strong>: TeamC is not better than TeamB when only these two are regarded. This algorithm gives an overall better team, based on the winning points.</p> <p>Your case is actually simpler. You just want to compare two teams. Therefore, a hash like :</p> <blockquote> <pre><code>{ :TeamA => 3, :TeamB => 2 } </code></pre> </blockquote> <p>clearly denotes that TeamA is better than TeamB and should be ranked higher. If you want to compare 3 teams having the same points, you would have to have another criteria, like highest scoring team is better.</p> <p><strong>EDIT</strong></p> <p>If the next 2 factors to get the best team is goals scored and then lost difference, you would have another hash like :</p> <pre><code>{ :TeamA => [3, 2], :TeamA => [2, 1], :TeamC => [1, 1] } </code></pre> <p>With [3,2] indicating [goals scored, lost difference]. You can now easily identify the best teams based on these two parameters.</p>

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