text: Recursively calculate the result of the queryy
code: if ( L <= m ) : NEW_LINE INDENT ans += queryy ( sum , add , L , R , l , m , rt << 1 ) NEW_LINE DEDENT if ( R > m ) : NEW_LINE INDENT ans += queryy ( sum , add , L , R , m + 1 , r , ( rt << 1 1 ) ) NEW_LINE DEDENT