Owl Get a Life

Compile Error

management.cpp: In function ‘int main()’:
management.cpp:5:2: error: ‘cin’ was not declared in this scope
5 | cin>>N;
| ^~~
management.cpp:6:2: error: ‘vector’ was not declared in this scope
6 | vector<int> A(N);
| ^~~~~~
management.cpp:1:13: error: expected primary-expression before ‘long’
1 | #define int long long
| ^~~~
management.cpp:6:9: note: in expansion of macro ‘int’
6 | vector<int> A(N);
| ^~~
management.cpp:1:13: error: expected primary-expression before ‘long’
1 | #define int long long
| ^~~~
management.cpp:7:9: note: in expansion of macro ‘int’
7 | vector<int> C(N+1,0);
| ^~~
management.cpp:9:10: error: ‘A’ was not declared in this scope
9 | cin >> A[i];
| ^
management.cpp:10:3: error: ‘C’ was not declared in this scope
10 | C[A[i]]++;
|