View Compilation Error

0_0_39273922_19776.cpp: In function 'std::vector<long long int> check(int)':
0_0_39273922_19776.cpp:8:5: error: 'row' was not declared in this scope; did you mean 'pow'?
    8 |     row[0] = 1;
      |     ^~~
      |     pow
0_0_39273922_19776.cpp: In function 'int main()':
0_0_39273922_19776.cpp:25:21: error: 'a' was not declared in this scope
   25 |             cout << a[i] << ' ';
      |                     ^