Problem	3nplus1
User	Runjia
Submission Time	2025-02-08 12:47:56
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

3nplus1.cpp: In function ‘int32_t main()’:
3nplus1.cpp:13:18: error: no matching function for call to ‘std::vector<std::__cxx11::basic_string<char> >::push_back()’
13 | ans.push_back();
| ^
In file included from /usr/include/c++/9/vector:67,
from 3nplus1.cpp:2:
/usr/include/c++/9/bits/stl_vector.h:1184:7: note: candidate: ‘void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; std::vector<_Tp, _Alloc>::value_type = std::__cxx11::basic_string<char>]’
1184 | push_back(const value_type& __x)
| ^~~~~~~~~
/usr/include/c++/9/bits/stl_vector.h:1184:7: note: candidate expects 1 argument, 0 provided
/usr/include/c++/9/bits/stl_vector.h:1200:7: note: candidate: ‘void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::valu