Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main()
{
   int n;
   cin>>n;
  
   vector<tuple<string,int,int>>a;
  
  for(int i=0;i<n;i++)
  {
      string s;
      int p;
      int id = i+1;
    
    cin>>s>>p;
    p=-p;
    a.push_back(tie(s,p,id));
   
    
  }
    
  sort(a.begin(),a.end());
  
  for(vector<tuple<string,int,int>> i:a)
  {
      string s;
      int p;
      int id;
       tie(s,p,id) = i;
       cout<<id<<endl;
  }
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:39: error: conversion from 'std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int>' to non-scalar type 'std::vector<std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int> >' requested
   26 |   for(vector<tuple<string,int,int>> i:a)
      |                                       ^
a.cc:31:22: error: no match for 'operator=' (operand types are 'std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&>' and 'std::vector<std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int> >')
   31 |        tie(s,p,id) = i;
      |                      ^
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,
                 from a.cc:1:
/usr/include/c++/14/tuple:1930:9: note: candidate: 'template<class ... _UElements> std::__enable_if_t<((bool)__assignable<const _UElements& ...>()), std::tuple< <template-parameter-1-1> >&> std::tuple< <template-parameter-1-1> >::operator=(const std::tuple<_Args1 ...>&) [with _UElements = {_UElements ...}; _Elements = {std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&}]'
 1930 |         operator=(const tuple<_UElements...>& __in)
      |         ^~~~~~~~
/usr/include/c++/14/tuple:1930:9: note:   template argument deduction/substitution failed:
a.cc:31:22: note:   'std::vector<std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int> >' is not derived from 'const std::tuple<_UTypes ...>'
   31 |        tie(s,p,id) = i;
      |                      ^
/usr/include/c++/14/tuple:1940:9: note: candidate: 'template<class ... _UElements> std::__enable_if_t<((bool)__assignable<_UElements ...>()), std::tuple< <template-parameter-1-1> >&> std::tuple< <template-parameter-1-1> >::operator=(std::tuple<_Args1 ...>&&) [with _UElements = {_UElements ...}; _Elements = {std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&}]'
 1940 |         operator=(tuple<_UElements...>&& __in)
      |         ^~~~~~~~
/usr/include/c++/14/tuple:1940:9: note:   template argument deduction/substitution failed:
a.cc:31:22: note:   'std::vector<std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int> >' is not derived from 'std::tuple<_UTypes ...>'
   31 |        tie(s,p,id) = i;
      |                      ^
/usr/include/c++/14/tuple:1907:7: note: candidate: 'std::tuple< <template-parameter-1-1> >& std::tuple< <template-parameter-1-1> >::operator=(std::__conditional_t<((bool)__assignable<const _Elements& ...>()), const std::tuple< <template-parameter-1-1> >&, const std::__nonesuch&>) [with _Elements = {std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&}; std::__conditional_t<((bool)__assignable<const _Elements& ...>()), const std::tuple< <template-parameter-1-1> >&, const std::__nonesuch&> = const std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&>&]'
 1907 |       operator=(__conditional_t<__assignable<const _Elements&...>(),
      |       ^~~~~~~~
/usr/include/c++/14/tuple:1909:52: note:   no known conversion for argument 1 from 'std::vector<std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int> >' to 'std::__conditional_t<true, const std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&>&, const std::__nonesuch&>' {aka 'const std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&>&'}
 1907 |       operator=(__conditional_t<__assignable<const _Elements&...>(),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1908 |                                 const tuple&,
      |                                 ~~~~~~~~~~~~~       
 1909 |                                 const __nonesuch&> __in)
      |                                 ~~~~~~~~~~~~~~~~~~~^~~~
/usr/include/c++/14/tuple:1918:7: note: candidate: 'std::tuple< <template-parameter-1-1> >& std::tuple< <template-parameter-1-1> >::operator=(std::__conditional_t<((bool)__assignable<_Elements ...>()), std::tuple< <template-parameter-1-1> >&&, std::__nonesuch&&>) [with _Elements = {std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&}; std::__conditional_t<((bool)__assignable<_Elements ...>()), std::tuple< <template-parameter-1-1> >&&, std::__nonesuch&&> = std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&>&&]'
 1918 |       operator=(__conditional_t<__assignable<_Elements...>(),
      |       ^~~~~~~~
/usr/include/c++/14/tuple:1920:47: note:   no known conversion for argument 1 from 'std::vector<std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int> >' to 'std::__conditional_t<true, std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&>&&, std::__nonesuch&&>' {aka 'std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, int&, int&>&&'}
 1918 |       operator=(__conditional_t<__assignable<_Elements...>(),
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1919 |                                 tuple&&,
      |                                 ~~~~~~~~       
 1920 |                                 __nonesuch&&> __in)
      |                                 ~~~~~~~~~~~~~~^~~~