k | PHP program to find k - th element in the Odd - Even sequence . ; insert all the odd numbers from 1 to n . ; insert all the even numbers from 1 to n . ; Driver code
< ? php function findK ( $ n , $ k ) { $ a ; $ index = 0 ; for ( $ i = 1 ; $ i < $ n ; $ i ++ ) if ( $ i % 2 == 1 ) $ a [ $ index ++ ] = $ i ; for ( $ i = 1 ; $ i < $ n ; $ i ++ ) if ( $ i % 2 == 0 ) $ a [ $ index ++ ] = $ i ; return ( $ a [ $ k - 1 ] ) ; } $ n = 10 ; $ k = 3 ; echo findK ( $ n , $ k ) ; ? >