Language: C++

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

#define ll long long
#define ld long double
#define pi 3.14159265359
int main(){
    int N; cin >> N;
    vector<ll> A(N),sum(N);
    for (int i = 0; i < N; i++) {
        cin >> A.at(i);
        sum.at(A.at(i) - 1)++;
    }
    vector<ll> combi(N);
    ll combisum = 0;
    for (int i = 0; i < N; i++) {
        combi.at(i) = max((sum.at(i) * (sum.at(i) - 1)) / 2, 0);
        combisum += combi.at(i);
    }
    ll ans;
    for (int i = 0; i < N; i++) {
        ans = combisum - combi.at(A.at(i) - 1) + max(((sum.at(A.at(i) - 1) - 1) * (sum.at(A.at(i) - 1) - 2)) / 2, 0);
        cout << ans << endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:26: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type, int)'
   17 |         combi.at(i) = max((sum.at(i) * (sum.at(i) - 1)) / 2, 0);
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:17:26: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   17 |         combi.at(i) = max((sum.at(i) * (sum.at(i) - 1)) / 2, 0);
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:17:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   17 |         combi.at(i) = max((sum.at(i) * (sum.at(i) - 1)) / 2, 0);
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:22:53: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type, int)'
   22 |         ans = combisum - combi.at(A.at(i) - 1) + max(((sum.at(A.at(i) - 1) - 1) * (sum.at(A.at(i) - 1) - 2)) / 2, 0);
      |                                                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:22:53: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   22 |         ans = combisum - combi.at(A.at(i) - 1) + max(((sum.at(A.at(i) - 1) - 1) * (sum.at(A.at(i) - 1) - 2)) / 2, 0);
      |                                                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:22:53: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   22 |         ans = combisum - combi.at(A.at(i) - 1) + max(((sum.at(A.at(i) - 1) - 1) * (sum.at(A.at(i) - 1) - 2)) / 2, 0);
      |                                                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~