Submission #1260406

#	Time	Username	Problem	Language	Result	Execution time	Memory
1260406		kawhiet	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>> a;
    for(int i = 0; i < n; i++) {
        a.push_back({v[i], i});
    }
    sort(a.begin(), a.end());
    for (int i = 0; i < n / 2; i++) {
        int x = (b[i].first + 75000 - b[i + (n + 1) / 2].first) % 50000;
        rotate({b[i + (n + 1) / 2].second}, x);
    }
}

Compilation message (stderr)

rotate.cpp: In function 'void energy(int, std::vector<int>)':
rotate.cpp:12:18: error: 'b' was not declared in this scope
   12 |         int x = (b[i].first + 75000 - b[i + (n + 1) / 2].first) % 50000;
      |                  ^
rotate.cpp:13:15: error: no matching function for call to 'rotate(<brace-enclosed initializer list>, int&)'
   13 |         rotate({b[i + (n + 1) / 2].second}, x);
      |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/vector:62,
                 from rotate.h:1,
                 from rotate.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:1405:5: note: candidate: 'template<class _FIter> constexpr _FIter std::_V2::rotate(_FIter, _FIter, _FIter)'
 1405 |     rotate(_ForwardIterator __first, _ForwardIterator __middle,
      |     ^~~~~~
/usr/include/c++/11/bits/stl_algo.h:1405:5: note:   template argument deduction/substitution failed:
rotate.cpp:13:15: note:   candidate expects 3 arguments, 2 provided
   13 |         rotate({b[i + (n + 1) / 2].second}, x);
      |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included 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/glue_algorithm_defs.h:260:1: note: candidate: 'template<class _ExecutionPolicy, class _ForwardIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator> std::rotate(_ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, _ForwardIterator)'
  260 | rotate(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __middle, _ForwardIterator __last);
      | ^~~~~~
/usr/include/c++/11/pstl/glue_algorithm_defs.h:260:1: note:   template argument deduction/substitution failed:
rotate.cpp:13:15: note:   candidate expects 4 arguments, 2 provided
   13 |         rotate({b[i + (n + 1) / 2].second}, x);
      |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from rotate.cpp:1:
rotate.h:4:6: note: candidate: 'void rotate(std::vector<int>, int)'
    4 | void rotate(std::vector<int> t, int x);
      |      ^~~~~~
rotate.h:4:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<int>'
    4 | void rotate(std::vector<int> t, int x);
      |             ~~~~~~~~~~~~~~~~~^