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117 lines
3.1 KiB
HTML
117 lines
3.1 KiB
HTML
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<!DOCTYPE html>
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<head>
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<!--
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Copyright (C) 2007 Apple Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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-->
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<title>SunSpider access-fannkuch</title>
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</head>
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<body>
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<h3>access-fannkuch</h3>
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<div id="console">
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</div>
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<script>
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var _sunSpiderStartDate = new Date();
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/* The Great Computer Language Shootout
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http://shootout.alioth.debian.org/
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contributed by Isaac Gouy */
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function fannkuch(n) {
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var check = 0;
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var perm = Array(n);
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var perm1 = Array(n);
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var count = Array(n);
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var maxPerm = Array(n);
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var maxFlipsCount = 0;
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var m = n - 1;
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for (var i = 0; i < n; i++) perm1[i] = i;
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var r = n;
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while (true) {
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// write-out the first 30 permutations
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if (check < 30){
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var s = "";
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for(var i=0; i<n; i++) s += (perm1[i]+1).toString();
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check++;
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}
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while (r != 1) { count[r - 1] = r; r--; }
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if (!(perm1[0] == 0 || perm1[m] == m)) {
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for (var i = 0; i < n; i++) perm[i] = perm1[i];
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var flipsCount = 0;
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var k;
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while (!((k = perm[0]) == 0)) {
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var k2 = (k + 1) >> 1;
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for (var i = 0; i < k2; i++) {
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var temp = perm[i]; perm[i] = perm[k - i]; perm[k - i] = temp;
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}
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flipsCount++;
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}
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if (flipsCount > maxFlipsCount) {
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maxFlipsCount = flipsCount;
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for (var i = 0; i < n; i++) maxPerm[i] = perm1[i];
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}
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}
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while (true) {
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if (r == n) return maxFlipsCount;
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var perm0 = perm1[0];
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var i = 0;
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while (i < r) {
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var j = i + 1;
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perm1[i] = perm1[j];
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i = j;
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}
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perm1[r] = perm0;
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count[r] = count[r] - 1;
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if (count[r] > 0) break;
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r++;
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}
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}
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}
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var n = 8;
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var ret = fannkuch(n);
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var _sunSpiderInterval = new Date() - _sunSpiderStartDate;
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document.getElementById("console").innerHTML = _sunSpiderInterval;
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</script>
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</body>
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</html>
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