16 lines
368 B
PHP
16 lines
368 B
PHP
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<?php
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foreach(file('php://stdin') as $line) {
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$tri[] = explode(' ',trim($line));
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}
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for($y=count($tri);$y>=0;$y--) {
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for($x=0;$x<count($tri[$y]);$x++) {
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$cur = $tri[$y][$x];
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if($cur + $tri[$y+1][$x] > $cur + $tri[$y+1][$x+1]) {
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$tri[$y][$x] = $cur + $tri[$y+1][$x];
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} else {
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$tri[$y][$x] = $cur + $tri[$y+1][$x+1];
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}
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}
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}
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echo $tri[0][0];
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