reverse.cpp: In function 'std::vector<long long int> reverse(std::vector<long long int>)':
reverse.cpp:5:10: error: 'vector' was not declared in this scope
5 | return vector<long long>a;
| ^~~~~~
reverse.cpp:5:10: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
from reverse.h:3,
from reverse.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:389:11: note: 'std::vector'
389 | class vector : protected _Vector_base<_Tp, _Alloc>
| ^~~~~~
In file included from reverse.h:3,
from reverse.cpp:1:
/usr/include/c++/10/vector:86:13: note: 'std::pmr::vector'
86 | using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
| ^~~~~~
reverse.cpp:5:17: error: expected primary-expression before 'long'
5 | return vector<long long>a;
| ^~~~
reverse.cpp:5:17: error: expected ';' before 'long'
5 | return vector<long long>a;
| ^~~~
| ;
reverse.cpp:5:26: error: expected unqualified-id before '>' token
5 | return vector<long long>a;
| ^