Restructuring
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20
solutions/ProjectEuler/104/solve.php
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20
solutions/ProjectEuler/104/solve.php
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@ -0,0 +1,20 @@
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<?php
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function pandigital($num) {
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for ($i = 1; $i <= 9; $i++) {
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if(strpos($n,(string)$i) === false) {
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return false;
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}
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}
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return true;
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}
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$var = 1;
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$k = 1;
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while(true) {
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$k++;
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$new = bcadd($var,$prev);
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$prev = $var;
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$var = $new;
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if(pandigital(substr($var,-9)) AND pandigital(substr($var,0,9))) { echo $k; die; }
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}
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