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23
Task/Permutations/JavaScript/permutations.js
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23
Task/Permutations/JavaScript/permutations.js
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<html><head><title>Permutations</title></head>
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<body><pre id="result"></pre>
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<script type="text/javascript">
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var d = document.getElementById('result');
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function perm(list, ret)
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{
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if (list.length == 0) {
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var row = document.createTextNode(ret.join(' ') + '\n');
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d.appendChild(row);
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return;
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}
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for (var i = 0; i < list.length; i++) {
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var x = list.splice(i, 1);
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ret.push(x);
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perm(list, ret);
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ret.pop();
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list.splice(i, 0, x);
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}
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}
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perm([1, 2, 'A', 4], []);
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</script></body></html>
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