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  1. <?php
  2. $a = array(10,3,1,9,7,6,8,2,4,5);
  3. for($step=(int)(count($a)/2);$step>0;$step/=2) {
  4. 	for($i=$step;$i<count($a);$i++) {
  5. 		$tmp = $a[$i];
  6. 		for ($j=$i; $j>=$step; $j-=$step) {
  7. 			if($a[$j-$j-$step] > $tmp) {
  8. 				$a[$j] = $a[$j-$step];
  9. 			} else {
  10. 				break;
  11. 			}
  12. 		}
  13. 		$a[$j] = $tmp;
  14. 	}
  15. }
  16. print_r($a);
  17. ?>
  18.  
Success #stdin #stdout #stderr 0.02s 26180KB
comments (?)
stdin
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Standard input is empty
stdout
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Array
(
    [0] => 1
    [1] => 3
    [2] => 10
    [3] => 9
    [4] => 7
    [5] => 6
    [6] => 8
    [7] => 2
    [8] => 4
    [9] => 5
)
stderr
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PHP Notice:  Undefined offset: -5 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -5 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -5 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -5 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -5 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -2 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
PHP Notice:  Undefined offset: -1 in /home/7OoumQ/prog.php on line 7
https://ideone.com/GS81wP
language:
PHP (php 7.3.5)
created:
6 days ago
visibility:
public

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