View Compilation Error

0_0_38702872_12444.cpp:7:12: error: conflicting declaration 'int ans [20]'
    7 | int x[20], ans[20];
      |            ^~~
0_0_38702872_12444.cpp:6:8: note: previous declaration as 'int ans'
    6 | int n, ans;
      |        ^~~
0_0_38702872_12444.cpp: In function 'int main()':
0_0_38702872_12444.cpp:31:20: error: invalid types 'int[int]' for array subscript
   31 |                 ans[i] = dfs(i);
      |                    ^
0_0_38702872_12444.cpp:37:28: error: invalid types 'int[int]' for array subscript
   37 |                 cout << ans[n] << endl;
      |                            ^