Code Jam Example

reverse_words.php

#!/usr/bin/php -q
<?php

$handle = @fopen("B-large-practice.in", "r");
$count = fgets($handle);

for( $i = 1; $i <= $count; $i++ ) {
	echo 'Case #' . $i . ': ' . implode(' ', array_reverse(explode(' ', trim(fgets($handle)))) ) . PHP_EOL;
}

store_credit.php

#!/usr/bin/php -q 
<?php

$handle = @fopen("A-large-practice.in", "r");
$count = fgets($handle);

for( $i = 1; $i <= $count; $i++ ) {
	$c = fgets($handle);
	fgets($handle);
	$prods = explode( ' ', fgets($handle) );
	$x = 0;
	foreach( $prods as $prod ) {
		$find = $c - $prod;
		if( $find > 0 ) {
			if( ( $j = array_search( $find, $prods ) ) !== false && $j != $x ) {
				echo 'Case #' . $i . ': ' . (min($x,$j) + 1) . ' ' . (max($x,$j) + 1) . PHP_EOL;
				break 1;
			}
		}
		$x++;
	}
}