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<?php // continuing with complex anagrams // if we have "babc" and we want a signature for this to get // --> [1, 2, 1, 0, 0, 0, ... , 0] function buildingSignature($input) { $signature = array_fill(0, 26, 0); $input = strtolower($input); for ($i = 0; $i < strlen($input); $i++) { $char = $input[$i]; $signature[ord($char) - ord('a')] += 1; } return $signature; } echo '<pre>';print_r(buildingSignature("babc"));echo '</pre>';die; var_dump(buildingSignature("babc"));die;
Output for git.master_jit, git.master
<pre>Array ( [0] => 1 [1] => 2 [2] => 1 [3] => 0 [4] => 0 [5] => 0 [6] => 0 [7] => 0 [8] => 0 [9] => 0 [10] => 0 [11] => 0 [12] => 0 [13] => 0 [14] => 0 [15] => 0 [16] => 0 [17] => 0 [18] => 0 [19] => 0 [20] => 0 [21] => 0 [22] => 0 [23] => 0 [24] => 0 [25] => 0 ) </pre>

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