foo.cc: In function 'int main()':
foo.cc:20:2: error: expected initializer before 'int'
   20 |  int N,i,num = 0;
      |  ^~~
foo.cc:21:9: error: 'N' was not declared in this scope
   21 |  cin >> N;
      |         ^
foo.cc:22:6: error: 'i' was not declared in this scope
   22 |  for(i = 2;i <= N;i++)
      |      ^
foo.cc:24:17: error: 'isPrine' was not declared in this scope; did you mean 'isPrime'?
   24 |   if (N%i==0 && isPrine(i)==1)
      |                 ^~~~~~~
      |                 isPrime
foo.cc:26:4: error: 'a' was not declared in this scope
   26 |    a[num]==i
      |    ^
foo.cc:26:6: error: 'num' was not declared in this scope; did you mean 'enum'?
   26 |    a[num]==i
      |      ^~~
      |      enum
foo.cc:30:10: error: 'num' was not declared in this scope; did you mean 'enum'?
   30 |  cout << num << endl;
      |          ^~~
      |          enum
foo.cc:31:6: error: 'i' was not declared in this scope
   31 |  for(i = 0;i<num;i++)
      |      ^
foo.cc:33:10: error: 'a' was not declared in this scope
   33 |   cout <<a[i]<<" ";
      |          ^
foo.cc:35:10: error: expected ';' before '}' token
   35 |  return 0
      |          ^
      |          ;
   36 | }
      | ~         

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