View Compilation Error

0_0_39402257_32454.cpp: In function 'int main()':
0_0_39402257_32454.cpp:27:55: error: invalid type argument of unary '*' (have 'int')
   27 |         if (dx * dx + dy * dy + dz * dz <= (long long)* r) {
      |                                                       ^~~