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<?php
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floyds_triangle(5);
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floyds_triangle(14);
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function floyds_triangle($n) {
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echo "n = " . $n . "\r\n";
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for($r = 1, $i = 1, $c = 0; $r <= $n; $i++) {
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$cols = ceil(log10($n*($n-1)/2 + $c + 2));
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printf("%".$cols."d ", $i);
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if(++$c == $r) {
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echo "\r\n";
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$r++;
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$c = 0;
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}
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}
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?>
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