Language: C++

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

int main(){
  int N;
  cin >> N;
  
  vector<int> L(N);
  for (int i = 0 ; i < N; i++) cin >> L.at(i);
  
  sort(L.begin(), L.end());
  long cnt = 0, k = 0;
  
  for (int i = 0; i < N; i++) {
    for (int j = i + 1; j < N; j++) {
      k = lower_bound(L.begin(), L.end(), L.at(i) + L.at(j)) – L.begin();
      cnt += max(k – (j + 1), 0);
    }
  }
  cout << cnt;
  return 0;
}



Compiler output:
a.cc:16:62: error: extended character – is not valid in an identifier
   16 |       k = lower_bound(L.begin(), L.end(), L.at(i) + L.at(j)) – L.begin();
      |                                                              ^
a.cc:17:20: error: extended character – is not valid in an identifier
   17 |       cnt += max(k – (j + 1), 0);
      |                    ^
a.cc: In function 'int main()':
a.cc:16:22: error: cannot convert '__gnu_cxx::__normal_iterator<int*, std::vector<int> >' to 'long int' in assignment
   16 |       k = lower_bound(L.begin(), L.end(), L.at(i) + L.at(j)) – L.begin();
      |           ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                      |
      |                      __gnu_cxx::__normal_iterator<int*, std::vector<int> >
a.cc:17:19: error: expected ')' before '\U00002013'
   17 |       cnt += max(k – (j + 1), 0);
      |                 ~ ^~
      |                   )
a.cc:17:17: error: no matching function for call to 'max(long int&, int)'
   17 |       cnt += max(k – (j + 1), 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:17:17: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'int')
   17 |       cnt += max(k – (j + 1), 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:17:17: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   17 |       cnt += max(k – (j + 1), 0);
      |              ~~~^~~~~~~~~~~~~~~~