Language: C++

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




    int main(){
        int n;
        std::cin >> n;
        std::vector<tuple<string, int, int>> a;

        rep(i, n){
            string s;
            int p;

            std::cin >> s >> p;
            a.push_back(tie(s, p, i));
        }
        p = -p;
        sort(a.begin(), a.end());
        rep(i, n){
            std::cout << get<2>a[i]() << "\n";
        }
    }


Compiler output:
a.cc: In function 'int main()':
a.cc:21:9: error: 'p' was not declared in this scope
   21 |         p = -p;
      |         ^
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:80,
                 from a.cc:1:
/usr/include/c++/14/variant: In instantiation of 'struct std::variant_alternative<2, std::variant<> >':
/usr/include/c++/14/variant:106:11:   required by substitution of 'template<long unsigned int _Np, class _Variant> using std::variant_alternative_t = typename std::variant_alternative::type [with long unsigned int _Np = 2; _Variant = std::variant<>]'
  106 |     using variant_alternative_t =
      |           ^~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/variant:1748:5:   required by substitution of 'template<class _RealType, class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const piecewise_linear_distribution<_RealType>&) [with _RealType = <missing>; _CharT = char; _Traits = std::char_traits<char>]'
 1748 |     get(const variant<_Types...>&& __v)
      |     ^~~
a.cc:24:26:   required from here
   24 |             std::cout << get<2>a[i]() << "\n";
      |                          ^~~~~~
/usr/include/c++/14/variant:100:25: error: static assertion failed
  100 |       static_assert(_Np < sizeof...(_Types));
      |                     ~~~~^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/variant:100:25: note: the comparison reduces to '(2 < 0)'
In file included from /usr/include/c++/14/bits/stl_pair.h:62,
                 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:
/usr/include/c++/14/bits/utility.h: In instantiation of 'struct std::_Nth_type<2>':
/usr/include/c++/14/variant:102:13:   required from 'struct std::variant_alternative<2, std::variant<> >'
  102 |       using type = typename _Nth_type<_Np, _Types...>::type;
      |             ^~~~
/usr/include/c++/14/variant:106:11:   required by substitution of 'template<long unsigned int _Np, class _Variant> using std::variant_alternative_t = typename std::variant_alternative::type [with long unsigned int _Np = 2; _Variant = std::variant<>]'
  106 |     using variant_alternative_t =
      |           ^~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/variant:1748:5:   required by substitution of 'template<class _RealType, class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const piecewise_linear_distribution<_RealType>&) [with _RealType = <missing>; _CharT = char; _Traits = std::char_traits<char>]'
 1748 |     get(const variant<_Types...>&& __v)
      |     ^~~
a.cc:24:26:   required from here
   24 |             std::cout << get<2>a[i]() << "\n";
      |                          ^~~~~~
/usr/include/c++/14/bits/utility.h:237:13: error: '__type_pack_element' index is out of range
  237 |     { using type = __type_pack_element<_Np, _Types...>; };
      |             ^~~~
In file included from /usr/include/c++/14/bits/memory_resource.h:47,
                 from /usr/include/c++/14/string:68,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/tuple: In instantiation of 'struct std::tuple_element<2, std::tuple<> >':
/usr/include/c++/14/bits/utility.h:84:11:   required by substitution of 'template<long unsigned int __i, class _Tp> using std::__tuple_element_t = typename std::tuple_element::type [with long unsigned int __i = 2; _Tp = std::tuple<>]'
   84 |     using __tuple_element_t = typename tuple_element<__i, _Tp>::type;
      |           ^~~~~~~~~~~~~~~~~
/usr/include/c++/14/tuple:2466:5:   required by substitution of 'template<class _RealType, class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const piecewise_linear_distribution<_RealType>&) [with _RealType = <missing>; _CharT = char; _Traits = std::char_traits<char>]'
 2466 |     get(const tuple<_Elements...>&& __t) noexcept
      |     ^~~
a.cc:24:26:   required from here
   24 |             std::cout << get<2>a[i]() << "\n";
      |                          ^~~~~~
/usr/include/c++/14/tuple:2422:25: error: static assertion failed: tuple index must be in range
 2422 |       static_assert(__i < sizeof...(_Types), "tuple index must be in range");
      |                     ~~~~^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/tuple:2422:25: note: the comparison reduces to '(2 < 0)'
a.cc:24:26: error: use of deleted function 'constexpr std::__enable_if_t<(__i >= sizeof... (_Types))> std::get(const tuple<_Elements ...>&) [with long unsigned int __i = 2; _Elements = {}; __enable_if_t<(__i >= sizeof... (_Types))> = void]'
   24 |             std::cout << get<2>a[i]() << "\n";
      |                          ^~~~~~
/usr/include/c++/14/tuple:2476:5: note: declared here
 2476 |     get(const tuple<_Elements...>&) = delete;
      |     ^~~
a.cc:24:26: error: use of deleted function 'constexpr std::__enable_if_t<(__i >= sizeof... (_Types))> std::get(const tuple<_Elements ...>&) [with long unsigned int __i = 2; _Elements = {}; __enable_if_t<(__i >= sizeof... (_Types))> = void]'
   24 |             std::cout << get<2>a[i]() << "\n";
      |                          ^~~~~~
/usr/include/c++/14/tuple:2476:5: note: declared here
 2476 |     get(const tuple<_Elements...>&) = delete;
      |     ^~~
a.cc:24:26: error: use of deleted function 'constexpr std::__enable_if_t<(__i >= sizeof... (_Types))> std::get(const tuple<_Elements ...>&) [with long unsigned int __i = 2; _Elements = {}; __enable_if_t<(__i >= sizeof... (_Types))> = void]'
   24 |             std::cout << get<2>a[i]() << "\n";
      |                          ^~~~~~
/usr/include/c++/14/tuple:2476:5: note: declared here
 2476 |     get(const tuple<_Elements...>&) = delete;
      |     ^~~
a.cc:24:32: error: expected ';' before 'a'
   24 |             std::cout << get<2>a[i]() << "\n";
      |                                ^
      |                                ;