traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:84:10: error: no match for 'operator=' (operand types are 'vi {aka std::vector<int>}' and 'vl {aka std::vector<long long int>}')
W = vl(N);
^
In file included from /usr/include/c++/7/vector:69:0,
from /usr/include/c++/7/queue:61,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:86,
from traffic.cpp:4:
/usr/include/c++/7/bits/vector.tcc:179:5: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]
vector<_Tp, _Alloc>::
^~~~~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/vector.tcc:179:5: note: no known conversion for argument 1 from 'vl {aka std::vector<long long int>}' to 'const std::vector<int>&'
In file included from /usr/include/c++/7/vector:64:0,
from /usr/include/c++/7/queue:61,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:86,
from traffic.cpp:4:
/usr/include/c++/7/bits/stl_vector.h:461:7: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]
operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
^~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:461:7: note: no known conversion for argument 1 from 'vl {aka std::vector<long long int>}' to 'std::vector<int>&&'
/usr/include/c++/7/bits/stl_vector.h:482:7: note: candidate: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]
operator=(initializer_list<value_type> __l)
^~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:482:7: note: no known conversion for argument 1 from 'vl {aka std::vector<long long int>}' to 'std::initializer_list<int>'
traffic.cpp:100:7: error: too few arguments to function 'll dfs(int, int)'
dfs(0);
^
traffic.cpp:63:4: note: declared here
ll dfs(int x, int p) {
^~~