Driver program
int main ( ) { int arr [ ] = { 50 , 40 , 70 , 60 , 90 } ; int index [ ] = { 3 , 0 , 4 , 1 , 2 } ; int n = sizeof ( arr ) / sizeof ( arr [ 0 ] ) ; reorder ( arr , index , n ) ; cout << " Reordered ▁ array ▁ is : ▁ STRNEWLINE " ; for ( int i = 0 ; i < n ; i ++ ) cout << arr [ i ] << " ▁ " ; cout << " Modified Index array is : " for ( int i = 0 ; i < n ; i ++ ) cout << index [ i ] << " ▁ " ; return 0 ; }