foo.cc: In function 'int main()':
foo.cc:12:32: error: 'sqrt' was not declared in this scope
   12 |                 for(int j=1;j<=sqrt(n[i]);j++){
      |                                ^~~~
foo.cc:13:28: error: 'num' was not declared in this scope; did you mean 'enum'?
   13 |                         if(num[i]%j==0)
      |                            ^~~
      |                            enum

[Hydro](https://hydro.ac)提供评测服务