Language: C++

#include <algorithm>
#include <iostream>
#include <vector>
#include <map>
#include <queue>
#include <string>
#include <cmath>
using namespace std;

#undef INT_MIN
#undef INT_MAX
#define INT_MIN -2147483648
#define INT_MAX 2147483647

int main() {
	long long N, M;
	cin >> N >> M;

	long long countTails = 0;
	if (N < 3 && M < 3) {
		countTails = 0;
	}
	else {
		countTails = max(1, N - 2) * max(1, M - 2);
	}

	cout << countTails << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:33: error: no matching function for call to 'max(int, long long int)'
   24 |                 countTails = max(1, N - 2) * max(1, M - 2);
      |                              ~~~^~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 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:   template argument deduction/substitution failed:
a.cc:24:33: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   24 |                 countTails = max(1, N - 2) * max(1, M - 2);
      |                              ~~~^~~~~~~~~~
/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, 2 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, 2 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:   template argument deduction/substitution failed:
a.cc:24:33: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   24 |                 countTails = max(1, N - 2) * max(1, M - 2);
      |                              ~~~^~~~~~~~~~
a.cc:24:49: error: no matching function for call to 'max(int, long long int)'
   24 |                 countTails = max(1, N - 2) * max(1, M - 2);
      |                                              ~~~^~~~~~~~~~
/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:   template argument deduction/substitution failed:
a.cc:24:49: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   24 |                 countTails = max(1, N - 2) * max(1, M - 2);
      |                                              ~~~^~~~~~~~~~
/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, 2 provided
/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, 2 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:   template argument deduction/substitution failed:
a.cc:24:49: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   24 |                 countTails = max(1, N - 2) * max(1, M - 2);
      |                                              ~~~^~~~~~~~~~