Language: C++

#include <bits/stdc++.h>
#include <math.h>
#define REP(i, n) for(int i = 0; i < (n); i++)
#define ALL(v) (v).begin(), (v).end()
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
const int INF = 1001001001;
const int mINF = -1001001001;


int main() {
int n;
cin >> n;
pair<pair<string,int>,int> p[n];
string s;
int p;
REP(i,n) {
  cin >> s >> p;
  p[i] = make_pair(make_pair(s,-p),i+1);
}
sort(p,p+n);
REP(i,n) {
  cout << p[i].second << endl;
}

return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:5: error: conflicting declaration 'int p'
   17 | int p;
      |     ^
a.cc:15:28: note: previous declaration as 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int> p [n]'
   15 | pair<pair<string,int>,int> p[n];
      |                            ^
a.cc:19:12: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>' and 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int> [n]')
   19 |   cin >> s >> p;
      |   ~~~~~~~~ ^~ ~
      |       |       |
      |       |       std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int> [n]
      |       std::basic_istream<char>
In file included from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*'
   19 |   cin >> s >> p;
      |               ^
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'short int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(short int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'short int&'
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'short unsigned int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(short unsigned int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'short unsigned int&'
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'int&'
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'unsigned int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(unsigned int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'unsigned int&'
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'long int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(long int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'long int&'
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'long unsigned int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(long unsigned int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'long unsigned int&'
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'long long int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(long long int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'long long int&'
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: invalid conversion from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*' to 'long long unsigned int' [-fpermissive]
   19 |   cin >> s >> p;
      |               ^
      |               |
      |               std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*
a.cc:19:15: error: cannot bind rvalue '(long long unsigned int)((std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int>*)(& p))' to 'long long unsigned int&'
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  328 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/14/istream:328:7: note:   conversion of argument 1 would be ill-formed:
a.cc:19:15: error: cannot bind non-const lvalue reference of type 'void*&' to an rvalue of type 'void*'
   19 |   cin >> s >> p;
      |               ^
/usr/include/c++/14/istream:219:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  219 |       operator>>(float& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:219:25: note:   no known conversion for argument 1 from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int> [n]' to 'float&'
  219 |       operator>>(float& __f)
      |                  ~~~~~~~^~~
/usr/include/c++/14/istream:223:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  223 |       operator>>(double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:223:26: note:   no known conversion for argument 1 from 'std::pair<std::pair<std::__cxx11::basic_string<char>, int>, int> [n]' to 'double&'
  223 |       operator>>(do