View Compilation Error

0_0_38889314_13269.cpp: In function 'void solve()':
0_0_38889314_13269.cpp:5:5: error: 'll' was not declared in this scope
    5 |     ll a, n;
      |     ^~
0_0_38889314_13269.cpp:6:12: error: 'n' was not declared in this scope
    6 |     cin >> n >> a;
      |            ^
0_0_38889314_13269.cpp:6:17: error: 'a' was not declared in this scope
    6 |     cin >> n >> a;
      |                 ^
0_0_38889314_13269.cpp: In function 'int main()':
0_0_38889314_13269.cpp:36:5: error: 'IOS' was not declared in this scope
   36 |     IOS;
      |     ^~~