View Compilation Error

0_0_38889366_1799.cpp: In function 'void solve()':
0_0_38889366_1799.cpp:6:5: error: 'll' was not declared in this scope
    6 |     ll a, n;
      |     ^~
0_0_38889366_1799.cpp:7:12: error: 'n' was not declared in this scope
    7 |     cin >> n >> a;
      |            ^
0_0_38889366_1799.cpp:7:17: error: 'a' was not declared in this scope
    7 |     cin >> n >> a;
      |                 ^