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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; } var_dump(buildingSignature("babc"));die;
Output for git.master_jit, git.master
array(26) { [0]=> int(1) [1]=> int(2) [2]=> int(1) [3]=> int(0) [4]=> int(0) [5]=> int(0) [6]=> int(0) [7]=> int(0) [8]=> int(0) [9]=> int(0) [10]=> int(0) [11]=> int(0) [12]=> int(0) [13]=> int(0) [14]=> int(0) [15]=> int(0) [16]=> int(0) [17]=> int(0) [18]=> int(0) [19]=> int(0) [20]=> int(0) [21]=> int(0) [22]=> int(0) [23]=> int(0) [24]=> int(0) [25]=> int(0) }

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