1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
<!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-fannkuch</title>
</head>
<body>
<h3>access-fannkuch</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 fannkuch(n) {
var check = 0;
var perm = Array(n);
var perm1 = Array(n);
var count = Array(n);
var maxPerm = Array(n);
var maxFlipsCount = 0;
var m = n - 1;
for (var i = 0; i < n; i++) perm1[i] = i;
var r = n;
while (true) {
// write-out the first 30 permutations
if (check < 30){
var s = "";
for(var i=0; i<n; i++) s += (perm1[i]+1).toString();
check++;
}
while (r != 1) { count[r - 1] = r; r--; }
if (!(perm1[0] == 0 || perm1[m] == m)) {
for (var i = 0; i < n; i++) perm[i] = perm1[i];
var flipsCount = 0;
var k;
while (!((k = perm[0]) == 0)) {
var k2 = (k + 1) >> 1;
for (var i = 0; i < k2; i++) {
var temp = perm[i]; perm[i] = perm[k - i]; perm[k - i] = temp;
}
flipsCount++;
}
if (flipsCount > maxFlipsCount) {
maxFlipsCount = flipsCount;
for (var i = 0; i < n; i++) maxPerm[i] = perm1[i];
}
}
while (true) {
if (r == n) return maxFlipsCount;
var perm0 = perm1[0];
var i = 0;
while (i < r) {
var j = i + 1;
perm1[i] = perm1[j];
i = j;
}
perm1[r] = perm0;
count[r] = count[r] - 1;
if (count[r] > 0) break;
r++;
}
}
}
var n = 8;
var ret = fannkuch(n);
var _sunSpiderInterval = new Date() - _sunSpiderStartDate;
document.getElementById("console").innerHTML = _sunSpiderInterval;
</script>
</body>
</html>
|
