four sorted arrays each of size ' n '
$ arr1 = array ( 1 , 4 , 5 , 6 ) ; $ arr2 = array ( 2 , 3 , 7 , 8 ) ; $ arr3 = array ( 1 , 4 , 6 , 10 ) ; $ arr4 = array ( 2 , 4 , 7 , 8 ) ; $ n = sizeof ( $ arr1 ) ; $ x = 30 ; echo " Count = " ? >