Submission #1306318

#	Time	Username	Problem	Language	Result	Execution time	Memory
1306318		stephit	Rotating Lines (APIO25_rotate)	C++20	100 / 100	35 ms	2788 KiB

rotate

#include <bits/stdc++.h>
using namespace std;
const int N = 50000;
#define fi first
#define se second

void rotate(std::vector<int> t, int x);

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());

    int cnt = 0, p = 0;
    for (int i = 0; i < n; i++) if (a[i].fi < N/2) cnt++;
    
    if (cnt < n - cnt) 
    {
        for (int i = 0; i < n / 2; i++) {
            rotate({a[i].se}, - a[i].fi + a[i + n / 2].fi - N/2 + N*2);
        }
    } 
    else
    {
        for (int i = n - 1; i >= n - n / 2; i--) {
            rotate({a[i].se}, - a[i].fi + a[i - n / 2].fi + N/2 + N*2);
        }
    }
}

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 11 / 11
• Subtask 3: 8 / 8
• Subtask 4: 15 / 15
• Subtask 5: 15 / 15
• Subtask 6: 20 / 20
• Subtask 7: 26 / 26