Submission #1213937

#	Time	Username	Problem	Language	Result	Execution time	Memory
1213937		fskarica	Rotating Lines (APIO25_rotate)	C++20	Compilation error	0 ms	0 KiB

rotate

#include "rotate.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define fi first
#define se second
#define pii pair<int, int>

void energy(int n, vector <int> v) {
    vector <pii> v2;
    for (int i = 0; i < n; i++) v2.push_back({v[i], i});
    sort(v2.begin(), v2.end());

    for (int i = 0; i < n / 2; i++) rotate({v2[i].se}, 50000 - v[i].fi);
    for (int i = n / 2; i < n; i++) rotate({v2[i].se}, 7500 - v[i].fi);

//
//    for (int i = 0; i < n / 2; i++) rotate({i}, 75000 - v[i] + v[i + n / 2]);
//    for (int i = n / 2; i < n; i++) rotate({i}, 75000 - v[i]);
}

Compilation message (stderr)

rotate.cpp: In function 'void energy(int, std::vector<int>)':
rotate.cpp:7:12: error: request for member 'first' in 'v.std::vector<int>::operator[](((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'}
    7 | #define fi first
      |            ^~~~~
rotate.cpp:16:69: note: in expansion of macro 'fi'
   16 |     for (int i = 0; i < n / 2; i++) rotate({v2[i].se}, 50000 - v[i].fi);
      |                                                                     ^~
rotate.cpp:7:12: error: request for member 'first' in 'v.std::vector<int>::operator[](((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'}
    7 | #define fi first
      |            ^~~~~
rotate.cpp:17:68: note: in expansion of macro 'fi'
   17 |     for (int i = n / 2; i < n; i++) rotate({v2[i].se}, 7500 - v[i].fi);
      |                                                                    ^~