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Re: 500. Turbo Sort [message #172602 is a reply to message #172599]

Tue, 22 February 2011 03:43

Jerry Stuckle
Messages: 2598
Registered: September 2010

Karma:

Senior Member

On 2/21/2011 9:57 PM, n00m wrote:
> http://www.spoj.pl/problems/TSORT/
> My php code gets TimeLimitExceeded. Can it be accelerated somehow?
> Just curious. No problem here with C, C++, Pascal etc.
>
> <?php
>
> $a = array_fill(0, 1000001, 0);
>
> fscanf(STDIN, "%d\n",&$n);
>
> for ($i = 0; $i< $n; ++$i) {
> fscanf(STDIN, "%d\n",&$v);
> ++$a[$v];
> }
>
> //sort($a, SORT_NUMERIC);
>
> for ($i = 0; $i< 1000001; ++$i) {
> for ($j = 0; $j< $a[$i]; ++$j) {
> echo $i."\n";
> }
> }
>
> ?>

There's an execution time limit (default 30 seconds) built into PHP to
prevent a runaway script from hogging the server for long periods of
time. You can change this in your php.ini file, or you can make your
code more efficient.

I've seldom run into any script which runs more than 30 seconds.

--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================

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[Message index]

		500. Turbo Sort By: n00m on Tue, 22 February 2011 02:57
		Re: 500. Turbo Sort By: Jerry Stuckle on Tue, 22 February 2011 03:43
		Re: 500. Turbo Sort By: n00m on Tue, 22 February 2011 03:56
		Re: 500. Turbo Sort By: The Natural Philosoph on Tue, 22 February 2011 03:57
		Re: 500. Turbo Sort By: Peter H. Coffin on Tue, 22 February 2011 04:22
		Re: 500. Turbo Sort By: Kevin Wells on Tue, 22 February 2011 04:30
		Re: 500. Turbo Sort By: n00m on Tue, 22 February 2011 05:00
		Re: 500. Turbo Sort By: n00m on Tue, 22 February 2011 05:26
		Re: 500. Turbo Sort By: alvaro.NOSPAMTHANX on Tue, 22 February 2011 09:25
		Re: 500. Turbo Sort By: The Natural Philosoph on Tue, 22 February 2011 09:47
		Re: 500. Turbo Sort By: sheldonlg on Tue, 22 February 2011 12:16
		Re: 500. Turbo Sort By: Thomas 'PointedEars' on Wed, 23 February 2011 01:15
		Re: 500. Turbo Sort By: Luuk on Tue, 22 February 2011 09:22

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