18 lines
375 B
PHP
18 lines
375 B
PHP
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<?php
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$words = explode('","',substr(file_get_contents('php://STDIN'),1,-1));
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//Find triangles
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for($t=1;$t<40;$t++) {
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$triangle_numbers[] = 0.5*$t*($t+1);
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}
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foreach($words as $word) {
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for($c =0; $c < strlen($word); $c++) {
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$char_sum += ord($word[$c]) - 64;
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}
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if(in_array($char_sum,$triangle_numbers)) {
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$result++;
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}
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$char_sum = 0;
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}
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echo $result;
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