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Give two integer arrays A & B.A has n elements and B has ' n-1 ' elements . A has all the elements that are there in B. But B has one missing element. Write a function that takes arrays , A & B as imnput and finds the missing element in most optised manner .
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Answer Posted / rajesh
<?php
function findMissing($a1, $a2) {
for($i= 0; $i<count($a1); $i++) {
$found = false;
for($j= 0; $j<count($a2); $j++) {
if($a1[$i] == $a2[$j] ) {
$found = true;
break;
}
}
if($found == false) {
break;
}
}
return $a1[$i];
}
$element = findMissing(array(1, 3, 5, 7, 9, 10, 6), array(1, 3, 7, 9, 10, 6));
echo "Missing Element in second Array : " . $element;
?>
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