Language: C++

#include <bits/stdc++.h>
typedef long long ll;
#define rep(i,n) for(ll i=0;i<(n);i++)
#define sz(x) ll(x.size())
using namespace std;

int main() {
  ll n,p;
  string s;
  cin >> n;
  vector<pair<pair<ll,string>,ll>>a(n);
  rep(i,n){
  	cin >> s >> p;
  	a.at(i)=make_pair(make_pair(s,-1*p),i+1);
  }
  sort(a.begin(),a.end());
  rep(i,n) cout << a.at(i).second.second << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:48: error: no match for 'operator=' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int> >, std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int> >::value_type' {aka 'std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>'} and 'std::pair<std::pair<std::__cxx11::basic_string<char>, long long int>, long long int>')
   14 |         a.at(i)=make_pair(make_pair(s,-1*p),i+1);
      |                                                ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 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_pair.h:946:9: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, const _U1&>, std::is_assignable<_T2&, const _U2&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(const std::pair<_U1, _U2>&) [with _U2 = _U1; _T1 = std::pair<long long int, std::__cxx11::basic_string<char> >; _T2 = long long int]'
  946 |         operator=(const pair<_U1, _U2>& __p)
      |         ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:946:9: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_pair.h: In substitution of 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<std::pair<long long int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >&, const _U1&>, std::is_assignable<long long int&, const _U2&> >::value, std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&>::type std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>::operator=(const std::pair<_T1, _T2>&) [with _U1 = std::pair<std::__cxx11::basic_string<char>, long long int>; _U2 = long long int]':
a.cc:14:43:   required from here
   14 |         a.at(i)=make_pair(make_pair(s,-1*p),i+1);
      |                                                ^
/usr/include/c++/14/bits/stl_pair.h:946:9: error: no type named 'type' in 'struct std::enable_if<false, std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&>'
  946 |         operator=(const pair<_U1, _U2>& __p)
      |         ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:957:9: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, _U1&&>, std::is_assignable<_T2&, _U2&&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(std::pair<_U1, _U2>&&) [with _U2 = _U1; _T1 = std::pair<long long int, std::__cxx11::basic_string<char> >; _T2 = long long int]'
  957 |         operator=(pair<_U1, _U2>&& __p)
      |         ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:957:9: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_pair.h: In substitution of 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<std::pair<long long int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >&, _U1&&>, std::is_assignable<long long int&, _U2&&> >::value, std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&>::type std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>::operator=(std::pair<_T1, _T2>&&) [with _U1 = std::pair<std::__cxx11::basic_string<char>, long long int>; _U2 = long long int]':
a.cc:14:43:   required from here
   14 |         a.at(i)=make_pair(make_pair(s,-1*p),i+1);
      |                                                ^
/usr/include/c++/14/bits/stl_pair.h:957:9: error: no type named 'type' in 'struct std::enable_if<false, std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&>'
  957 |         operator=(pair<_U1, _U2>&& __p)
      |         ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:921:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(std::__conditional_t<((bool)std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value), const std::pair<_T1, _T2>&, const std::__nonesuch&>) [with _T1 = std::pair<long long int, std::__cxx11::basic_string<char> >; _T2 = long long int; std::__conditional_t<((bool)std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value), const std::pair<_T1, _T2>&, const std::__nonesuch&> = const std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&]'
  921 |       operator=(__conditional_t<__and_<is_copy_assignable<_T1>,
      |       ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:923:65: note:   no known conversion for argument 1 from 'std::pair<std::pair<std::__cxx11::basic_string<char>, long long int>, long long int>' to 'std::__conditional_t<true, const std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&, const std::__nonesuch&>' {aka 'const std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&'}
  921 |       operator=(__conditional_t<__and_<is_copy_assignable<_T1>,
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
  922 |                                        is_copy_assignable<_T2>>::value,
      |                                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  923 |                                 const pair&, const __nonesuch&> __p)
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_pair.h:931:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(std::__conditional_t<((bool)std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value), std::pair<_T1, _T2>&&, std::__nonesuch&&>) [with _T1 = std::pair<long long int, std::__cxx11::basic_string<char> >; _T2 = long long int; std::__conditional_t<((bool)std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value), std::pair<_T1, _T2>&&, std::__nonesuch&&> = std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&&]'
  931 |       operator=(__conditional_t<__and_<is_move_assignable<_T1>,
      |       ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:933:55: note:   no known conversion for argument 1 from 'std::pair<std::pair<std::__cxx11::basic_string<char>, long long int>, long long int>' to 'std::__conditional_t<true, std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&&, std::__nonesuch&&>' {aka 'std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>&&'}
  931 |       operator=(__conditional_t<__and_<is_move_assignable<_T1>,
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  932 |                                        is_move_assignable<_T2>>::value,
      |                                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  933 |                                 pair&&, __nonesuch&&> __p)
      |                                 ~~~~~~~~~~~~~~~~~~~~~~^~~
a.cc:17:35: error: request for member 'second' in 'a.std::vector<std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int> >::at(((std::vector<std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int> >::size_type)i)).std::pair<std::pair<long long int, std::__cxx11::basic_string<char> >, long long int>::second', which is of non-class type 'long long int'
   17 |   rep(i,n) cout << a.at(i).second.second << endl;
      |                                   ^~~~~~