question: returns the number of components . concode_field_sep HashMap<Integer,UnionFindByRankWithPathCompression> hash concode_elem_sep boolean matrix[][] concode_elem_sep int[] parent concode_elem_sep int[] size concode_elem_sep int count concode_elem_sep Set<Integer> numbers concode_elem_sep PrintWriter out concode_field_sep boolean connected concode_elem_sep int find concode_elem_sep void main concode_elem_sep void main concode_elem_sep void run concode_elem_sep void union concode_elem_sep boolean same_opinion concode_elem_sep void validate
target: int function ( ) { return count ; }