Submission #1365533

#	Time	Username	Problem	Language	Result	Execution time	Memory
1365533		gay	Rotating Lines (APIO25_rotate)	C++20	5 / 100	0 ms	836 KiB

rotate

#include <vector>
#include <algorithm>
#include <numeric>

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

void energy(int n, std::vector<int> v) {
    std::vector<int> p(n);
    std::iota(p.begin(), p.end(), 0);
    std::sort(p.begin(), p.end(), [&](int a, int b) {
        return v[a] < v[b];
    });

    int m = n / 2;
    int target_base = v[p[m]];
    int target_alt = (target_base + 25000) % 50000;

    for (int i = 0; i < m; ++i) {
        int id = p[i];
        int current_v = v[id];
        int diff = (target_alt - current_v + 50000) % 50000;
        if (diff != 0) {
            rotate({id}, diff);
            v[id] = target_alt;
        }
    }

    for (int i = n - 1; i >= m; --i) {
        int id = p[i];
        int current_v = v[id];
        int diff = (target_base - current_v + 50000) % 50000;
        if (diff != 0) {
            rotate({id}, diff);
            v[id] = target_base;
        }
    }
}

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