question: get the left child of an index concode_field_sep int size concode_elem_sep double priority concode_elem_sep HeapItem[] items concode_elem_sep Object object concode_field_sep void add concode_elem_sep int parent concode_elem_sep double getMaxKey concode_elem_sep int size concode_elem_sep Object extractMax concode_elem_sep Object getMaxObject concode_elem_sep int right concode_elem_sep void heapify concode_elem_sep Object[] getData
target: int function ( int arg0 ) { return 2 * arg0 ; }