Language: C++

#include <iostream>
#include <set>
#include <algorithm>
 
using namespace std;

int main() {
   #define int long long
    int W, H;
    cin >> W >> H;
    set<pair<int, bool>> S;
    for (int i = 0; i < W; i++) {
        int k;
        cin >> k;
        S.insert(make_pair(k, true));
    }
    for (int i = 0; i < H; i++) {
        int k;
        cin >> k;
        S.insert(make_pair(k, false));
    }
   
    long long res = 0;
    W++; H++;
    while (!S.empty()) {
        auto it = S.begin();
        if (it->second) {
            res += max(H, 0) * it->first;
            W--;
        } else {
            res += max(W, 0) * it->first;
            H--;
        }
        S.erase(S.begin());
    }
    cout << res << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:28:23: error: no matching function for call to 'max(long long int&, int)'
   28 |             res += max(H, 0) * it->first;
      |                    ~~~^~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 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:28:23: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   28 |             res += max(H, 0) * it->first;
      |                    ~~~^~~~~~
/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,
                 from a.cc:3:
/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:28:23: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   28 |             res += max(H, 0) * it->first;
      |                    ~~~^~~~~~
a.cc:31:23: error: no matching function for call to 'max(long long int&, int)'
   31 |             res += max(W, 0) * it->first;
      |                    ~~~^~~~~~
/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:31:23: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   31 |             res += max(W, 0) * it->first;
      |                    ~~~^~~~~~
/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:31:23: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   31 |             res += max(W, 0) * it->first;
      |                    ~~~^~~~~~