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【www.gdgbn.com--安卓教程】
function quickSort(&$data, $beg, $end)
02 {
03 if ($end > $beg) {
04 $piv = $data[$beg];
05 $k = $beg + 1;
06 $r = $end;
07 while ($k < $r) {
08 if ($data[$k] < $piv) {
09 $k++;
10 } else {
11 $tmp = $data[$k];
12 $data[$k] = $data[$r];
13 $data[$r] = $tmp;
14 $r--;
15 }
16 }
17 if ($data[$k] >= $piv) {
18 $k--;
19 }
20 $tmp = $data[$k];
21 $data[$k] = $data[$beg];
22 $data[$beg] = $tmp;
23 quickSort($data, $beg, $k);
24 quickSort($data, $r, $end);
25 }
26 }
27
28 function quickSort2(&$data)
29 {
30 $stack = array();
31 array_push($stack, array(0, count($data) - 1));
32 while (list($beg, $end) = array_pop($stack)) {
33 if ($end > $beg) {
34 $piv = $data[$beg];
35 $k = $beg + 1;
36 $r = $end;
37 while ($k < $r) {
38 if ($data[$k] < $piv) {
39 $k++;
40 } else {
41 $tmp = $data[$k];
42 $data[$k] = $data[$r];
43 $data[$r] = $tmp;
44 $r--;
45 }
46 }
47 if ($data[$k] >= $piv) {
48 $k--;
49 }
50 $tmp = $data[$k];
51 $data[$k] = $data[$beg];
52 $data[$beg] = $tmp;
53 array_push($stack, array($beg, $k));
54 array_push($stack, array($r, $end));
55 }
56 }
57 }
58
59 $data = array(7,6,6,3,8,1,8,1,9,1,3,11,51,1,25);
60 //selectSort($data);
61 //insertSort($data);
62 quickSort2($data);