perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:6:3: error: 'vector' was not declared in this scope
6 | vector<int> res;
| ^~~~~~
perm.cpp:6:3: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
from perm.h:1,
from perm.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 perm.h:1,
from perm.cpp:1:
/usr/include/c++/10/vector:86:13: note: 'std::pmr::vector'
86 | using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
| ^~~~~~
perm.cpp:6:10: error: expected primary-expression before 'int'
6 | vector<int> res;
| ^~~
perm.cpp:12:17: error: 'ok' was not declared in this scope
12 | if (ok) {
| ^~
perm.cpp:15:21: error: 'res' was not declared in this scope
15 | res.push_back(2 * i);
| ^~~
perm.cpp:19:17: error: 'res' was not declared in this scope
19 | res.push_back(2 * j + 1);
| ^~~
perm.cpp:23:12: error: 'res' was not declared in this scope
23 | return res;
| ^~~