Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int Inf = 1000000000;
constexpr ll INF= 1e18;
constexpr ll MOD = 1000000007;
const double PI = 3.1415926535897;
typedef pair<int,int> P;

int main() {
    int N;
    cin >> N;
    vector<int> vec(N);
    for(int i = 0;i < N;i++) {
        cin >> vec.at(i);
    }
    vector<ll> cnt(N + 1);
    for(int i = 0;i < N;i++) {
        cnt.at(vec.at(i))++;
    }
    ll ret = 0;
    for(int i = 1;i < N + 1;i++) {
        ret += cnt.at(i) * (cnt.at(i) - 1) / 2;
    }
    for(int i = 0;i < N;i++) {
        ll cnt2 = cnt.at(vec.at(i));
        cout << ret - (max(0,cnt2 * (cnt2 - 1) / 2) - max(0,(cnt2 - 1) * (cnt2 - 2) / 2)) << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:27: error: no matching function for call to 'max(int, ll)'
   27 |         cout << ret - (max(0,cnt2 * (cnt2 - 1) / 2) - max(0,(cnt2 - 1) * (cnt2 - 2) / 2)) << endl;
      |                        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
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:   template argument deduction/substitution failed:
a.cc:27:27: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   27 |         cout << ret - (max(0,cnt2 * (cnt2 - 1) / 2) - max(0,(cnt2 - 1) * (cnt2 - 2) / 2)) << endl;
      |                        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
/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:27:27: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   27 |         cout << ret - (max(0,cnt2 * (cnt2 - 1) / 2) - max(0,(cnt2 - 1) * (cnt2 - 2) / 2)) << endl;
      |                        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:27:58: error: no matching function for call to 'max(int, ll)'
   27 |         cout << ret - (max(0,cnt2 * (cnt2 - 1) / 2) - max(0,(cnt2 - 1) * (cnt2 - 2) / 2)) << endl;
      |                                                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:27:58: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   27 |         cout << ret - (max(0,cnt2 * (cnt2 - 1) / 2) - max(0,(cnt2 - 1) * (cnt2 - 2) / 2)) << endl;
      |                                                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:27:58: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   27 |         cout << ret - (max(0,cnt2 * (cnt2 - 1) / 2) - max(0,(cnt2 - 1) * (cnt2 - 2) / 2)) << endl;
      |                                                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~