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POBest way to keep track of an item when shuffling, of where they were before shuffeling
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copied!<p>I have a list of questions. Each question have at least 2 answers to choose from. There is only one option that is right, for now.</p> <p>Having the answers in the same order teaches the students of where the answer is located instead of learning the actual answer to the question. Hench shuffling the answers is good.</p> <p>Problem: I use the index to keep track of the correct answer for each question. This way wont work with shuffling the answers.</p> <p>Current question structure:</p> <pre><code>question structure { correct answer, index of where the correct answer is in the array below list of answers, simple array of strings } </code></pre> <p>When shuffling (Fisher–Yates shuffle) the correct answer is moved in the array, the index change.</p> <p>One possible solution is to switch the structure to this but it would be inefficient:</p> <pre><code>question structure { list of answers } answer structure { boolean correct answer (true, false) string answer } </code></pre> <p>Is there a better way of doing this? How do I keep track of the correct answer in the array?</p> <p>I was pondering of keeping an array of the answers in one list then use a map and shuffle that map. Seems like overkill, complicated and memory and cpu hungry. That way i could keep the index to the correct answer.</p> <p>I've stared myself blind of this problem.</p> <p>Note: This program prototype is written in C# but it shouldn't matter that much.</p>

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