longesttrip.cpp: In function 'bool sor(int, int)':
longesttrip.cpp:9:1: warning: no return statement in function returning non-void [-Wreturn-type]
9 | }
| ^
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:12:5: error: 'vector' was not declared in this scope
12 | vector<int> ans;
| ^~~~~~
longesttrip.cpp:12:5: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
from longesttrip.h:1,
from longesttrip.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 longesttrip.h:1,
from longesttrip.cpp:1:
/usr/include/c++/10/vector:86:13: note: 'std::pmr::vector'
86 | using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
| ^~~~~~
longesttrip.cpp:12:12: error: expected primary-expression before 'int'
12 | vector<int> ans;
| ^~~
longesttrip.cpp:13:5: error: 'ans' was not declared in this scope
13 | ans.push_back(0);
| ^~~
longesttrip.cpp:14:12: error: expected primary-expression before 'bool'
14 | vector<bool> vis(N,false);
| ^~~~
longesttrip.cpp:15:5: error: 'vis' was not declared in this scope
15 | vis[0]=true;
| ^~~