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‎Morse code string to Words/index.php

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<?php
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function get_morse() {
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return $morse_codes = array(
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"A"=>".-",
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"B"=>"-...",
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"C"=>"-.-.",
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"D"=>"-..",
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"E"=>".",
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"F"=>"..-.",
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"G"=>"--.",
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"H"=>"....",
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"I"=>"..",
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"J"=>".---",
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"K"=>"-.-",
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"L"=>".-..",
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"M"=>"--",
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"N"=>"-.",
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"O"=>"---",
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"P"=>".--.",
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"Q"=>"--.-",
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"R"=>".-.",
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"S"=>"...",
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"T"=>"-",
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"U"=>"..-",
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"V"=>"...-",
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"W"=>".--",
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"X"=>"-..-",
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"Y"=>"-.--",
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"Z"=>"--..",
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"0"=>"-----",
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"1"=>".----",
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"2"=>"..---",
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"3"=>"...--",
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"4"=>"....-",
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"5"=>".....",
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"6"=>"-....",
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"7"=>"--...",
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"8"=>"---..",
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"9"=>"----.",
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"."=>".-.-.-",
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","=>"--..--",
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"?"=>"..--..",
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"/"=>"-..-.",
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" "=>" "
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);
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}
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function possibilities($signals) {
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$signals = str_replace(['.','?'],['\.','[.-]'],$signals);
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$regexp = '~^'.$signals.'$~';
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$morse_codes = get_morse();
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$result = [];
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foreach ($morse_codes as $key => $value) {
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if (preg_match($regexp, $value)) {
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$result[$value] = $key;
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}
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}
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krsort($result);
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return array_values($result);
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}

‎Morse code string to Words/question.md

Whitespace-only changes.

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