tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:13:30: error: no matching function for call to 'std::vector<std::vector<int> >::push_back(int)'
13 | for(int i=0;i<n;i++) s.pb(0);
| ~~~~^~~
In file included from /usr/include/c++/11/vector:67,
from /usr/include/c++/11/functional:62,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from tickets.cpp:1:
/usr/include/c++/11/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; std::vector<_Tp, _Alloc>::value_type = std::vector<int>]'
1187 | push_back(const value_type& __x)
| ^~~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1187:35: note: no known conversion for argument 1 from 'int' to 'const value_type&' {aka 'const std::vector<int>&'}
1187 | push_back(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/11/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; std::vector<_Tp, _Alloc>::value_type = std::vector<int>]'
1203 | push_back(value_type&& __x)
| ^~~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1203:30: note: no known conversion for argument 1 from 'int' to 'std::vector<std::vector<int> >::value_type&&' {aka 'std::vector<int>&&'}
1203 | push_back(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tickets.cpp:15:1: warning: no return statement in function returning non-void [-Wreturn-type]
15 | }
| ^