Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
	long n,m,sum=0;
	cin>>n>>m;
	vector<long>vac(n);
	vector<long>vic(n);
	vector<long>vuc(n);
	vector<long>vec(n);
	for(int i=0;i<n;i++){
		long x,y,z;
		cin>>x>>Y>>z;
		vac.at(i)=x;
		vic.at(i)=y;
		vuc.at(i)=z;
	}
	for(int i=0;i<n;i++){
		vec.at(i)=max(vac.at(i)+vic.at(i)+vuc.at(i),vac.at(i)+vic.at(i)-vuc.at(i),vac.at(i)-vic.at(i)+vuc.at(i),vac.at(i)-vic.at(i)-vuc.at(i),-vac.at(i)+vic.at(i)+vuc.at(i),-vac.at(i)+vic.at(i)-vuc.at(i),-vac.at(i)-vic.at(i)+vuc.at(i),-vac.at(i)-vic.at(i)-vuc.at(i));
	}
	sort(vec.begin(),vec.end());
	reverse(vec.begin(),vec.end());
	for(int i=0;i<m;i++){
		sum+=vec.at(i);
	}
	cout<<sum<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:25: error: 'Y' was not declared in this scope
   13 |                 cin>>x>>Y>>z;
      |                         ^
a.cc:19:30: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type)'
   19 |                 vec.at(i)=max(vac.at(i)+vic.at(i)+vuc.at(i),vac.at(i)+vic.at(i)-vuc.at(i),vac.at(i)-vic.at(i)+vuc.at(i),vac.at(i)-vic.at(i)-vuc.at(i),-vac.at(i)+vic.at(i)+vuc.at(i),-vac.at(i)+vic.at(i)-vuc.at(i),-vac.at(i)-vic.at(i)+vuc.at(i),-vac.at(i)-vic.at(i)-vuc.at(i));
      |                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   candidate expects 2 arguments, 8 provided
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 8 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 8 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   candidate expects 2 arguments, 8 provided