Submission #1214083

#	Time	Username	Problem	Language	Result	Execution time	Memory
1214083		noop	Rotating Lines (APIO25_rotate)	C++20	Compilation error	0 ms	0 KiB

rotate

#include "rotate.h"
#include <bits/stdc++.h>
using namespace std;
void energy(int n, vector<int> v){
    vector<pair<int,int>> v2(n);
    for (int i=0; i<n; i++){
        v2[i]={v1[i],i};
    }
    sort(v2.begin(),v2.end());
    for (int i=0; i<n>>1; i++){
        pair<int,int> target=v2[i+(n>>1)];
        rotate({target.second},(v2[i].first+25000)%50000-target.first);
    }
}

Compilation message (stderr)

rotate.cpp: In function 'void energy(int, std::vector<int>)':
rotate.cpp:7:16: error: 'v1' was not declared in this scope; did you mean '__pstl::execution::v1'?
    7 |         v2[i]={v1[i],i};
      |                ^~
      |                __pstl::execution::v1
In file included from /usr/include/c++/11/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/11/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
                 from rotate.cpp:2:
/usr/include/c++/11/pstl/execution_defs.h:19:18: note: '__pstl::execution::v1' declared here
   19 | inline namespace v1
      |                  ^~
rotate.cpp:7:23: error: no match for 'operator=' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} and '<brace-enclosed initializer list>')
    7 |         v2[i]={v1[i],i};
      |                       ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
                 from /usr/include/c++/11/vector:60,
                 from rotate.h:1,
                 from rotate.cpp:1:
/usr/include/c++/11/bits/stl_pair.h:418:9: note: candidate: 'template<class _U1, class _U2> constexpr 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 _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
  418 |         operator=(const pair<_U1, _U2>& __p)
      |         ^~~~~~~~
/usr/include/c++/11/bits/stl_pair.h:418:9: note:   template argument deduction/substitution failed:
rotate.cpp:7:23: note:   couldn't deduce template parameter '_U1'
    7 |         v2[i]={v1[i],i};
      |                       ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
                 from /usr/include/c++/11/vector:60,
                 from rotate.h:1,
                 from rotate.cpp:1:
/usr/include/c++/11/bits/stl_pair.h:430:9: note: candidate: 'template<class _U1, class _U2> constexpr 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 _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
  430 |         operator=(pair<_U1, _U2>&& __p)
      |         ^~~~~~~~
/usr/include/c++/11/bits/stl_pair.h:430:9: note:   template argument deduction/substitution failed:
rotate.cpp:7:23: note:   couldn't deduce template parameter '_U1'
    7 |         v2[i]={v1[i],i};
      |                       ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
                 from /usr/include/c++/11/vector:60,
                 from rotate.h:1,
                 from rotate.cpp:1:
/usr/include/c++/11/bits/stl_pair.h:390:7: note: candidate: 'constexpr std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type = const std::pair<int, int>&]'
  390 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/11/bits/stl_pair.h:393:55: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, const std::pair<int, int>&, const std::__nonesuch&>::type' {aka 'const std::pair<int, int>&'}
  390 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~                  
  391 |                 __and_<is_copy_assignable<_T1>,
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~        
  392 |                        is_copy_assignable<_T2>>::value,
      |                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  393 |                 const pair&, const __nonesuch&>::type __p)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/11/bits/stl_pair.h:401:7: note: candidate: 'constexpr std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type = std::pair<int, int>&&]'
  401 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/11/bits/stl_pair.h:404:45: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, std::pair<int, int>&&, std::__nonesuch&&>::type' {aka 'std::pair<int, int>&&'}
  401 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~        
  402 |                 __and_<is_move_assignable<_T1>,
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  403 |                        is_move_assignable<_T2>>::value,
      |                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  404 |                 pair&&, __nonesuch&&>::type __p)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~