shoes.cpp:3:12: error: 'vector' was not declared in this scope
3 | #define vi vector<int>
| ^~~~~~
shoes.cpp:5:16: note: in expansion of macro 'vi'
5 | ll count_swaps(vi s) {
| ^~
shoes.cpp:3:12: note: suggested alternatives:
3 | #define vi vector<int>
| ^~~~~~
shoes.cpp:5:16: note: in expansion of macro 'vi'
5 | ll count_swaps(vi s) {
| ^~
In file included from /usr/include/c++/10/vector:67,
from /usr/include/c++/10/functional:62,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from shoes.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 /usr/include/c++/10/functional:62,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from shoes.cpp:1:
/usr/include/c++/10/vector:86:13: note: 'std::pmr::vector'
86 | using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
| ^~~~~~
shoes.cpp:3:19: error: expected primary-expression before 'int'
3 | #define vi vector<int>
| ^~~
shoes.cpp:5:16: note: in expansion of macro 'vi'
5 | ll count_swaps(vi s) {
| ^~