Problem	4sum
User	Tonko
Submission Time	2026-02-08 19:42:19
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

4sum.cpp: In function ‘int main()’:
4sum.cpp:14:57: error: cannot convert ‘std::vector<long long int>’ to ‘std::vector<long long int>::size_type’ {aka ‘long unsigned int’}
14 | A.reserve(a); B.reserve(b); C.reserve(c); D.reserve(D);
| ^
| |
| std::vector<long long int>
In file included from /usr/include/c++/9/vector:72,
from /usr/include/c++/9/functional:62,
from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/9/algorithm:71,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
from 4sum.cpp:1:
/usr/include/c++/9/bits/vector.tcc:67:23: note: initializing argument 1 of ‘void std::vector<_Tp, _Alloc>::reserve(std::vector<