зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
2.8 KiB
HTML
101 строка
2.8 KiB
HTML
<!DOCTYPE html>
|
|
<head>
|
|
<!--
|
|
Copyright (C) 2007 Apple Inc. All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
|
|
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
-->
|
|
|
|
<title>SunSpider access-binary-trees</title>
|
|
|
|
</head>
|
|
|
|
<body>
|
|
<h3>access-binary-trees</h3>
|
|
<div id="console">
|
|
</div>
|
|
|
|
<script>
|
|
|
|
var _sunSpiderStartDate = new Date();
|
|
|
|
/* The Great Computer Language Shootout
|
|
http://shootout.alioth.debian.org/
|
|
contributed by Isaac Gouy */
|
|
|
|
function TreeNode(left,right,item){
|
|
this.left = left;
|
|
this.right = right;
|
|
this.item = item;
|
|
}
|
|
|
|
TreeNode.prototype.itemCheck = function(){
|
|
if (this.left==null) return this.item;
|
|
else return this.item + this.left.itemCheck() - this.right.itemCheck();
|
|
}
|
|
|
|
function bottomUpTree(item,depth){
|
|
if (depth>0){
|
|
return new TreeNode(
|
|
bottomUpTree(2*item-1, depth-1)
|
|
,bottomUpTree(2*item, depth-1)
|
|
,item
|
|
);
|
|
}
|
|
else {
|
|
return new TreeNode(null,null,item);
|
|
}
|
|
}
|
|
|
|
var ret;
|
|
|
|
for ( var n = 4; n <= 7; n += 1 ) {
|
|
var minDepth = 4;
|
|
var maxDepth = Math.max(minDepth + 2, n);
|
|
var stretchDepth = maxDepth + 1;
|
|
|
|
var check = bottomUpTree(0,stretchDepth).itemCheck();
|
|
|
|
var longLivedTree = bottomUpTree(0,maxDepth);
|
|
for (var depth=minDepth; depth<=maxDepth; depth+=2){
|
|
var iterations = 1 << (maxDepth - depth + minDepth);
|
|
|
|
check = 0;
|
|
for (var i=1; i<=iterations; i++){
|
|
check += bottomUpTree(i,depth).itemCheck();
|
|
check += bottomUpTree(-i,depth).itemCheck();
|
|
}
|
|
}
|
|
|
|
ret = longLivedTree.itemCheck();
|
|
}
|
|
|
|
|
|
var _sunSpiderInterval = new Date() - _sunSpiderStartDate;
|
|
|
|
document.getElementById("console").innerHTML = _sunSpiderInterval;
|
|
</script>
|
|
|
|
|
|
</body>
|
|
</html>
|