Submission #1118582

#	Time	Username	Problem	Language	Result	Execution time	Memory
1118582		Ablabla	Restore Array (RMI19_restore)	C++11	100 / 100	161 ms	1496 KiB

restore

#include <climits>
#include <iostream>
#include <vector>

using namespace std;

using ll = long long;
#define int ll

struct edge {
    int from, to, w;
};

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, m;
    cin >> n >> m;

    vector<edge> edges;

    for (int i = 0; i < n; i++) {
        edges.push_back({ i, i + 1, 1 });
        edges.push_back({ i + 1, i, 0 });
    }

    for (int i = 0; i < m; i++) {
        int l, r, k, v;
        cin >> l >> r >> k >> v;

        if (v == 0) {
            // p[r + 1] - p[l] <= r - l + 1 - k
            // p[r + 1] <= p[l] + r - l + 1 - k
            edges.push_back({ l, r + 1, r - l + 1 - k });
        }
        else {
            // p[r + 1] - p[l] >= (r - l + 1) - (k - 1)
            // p[r + 1] - r + l - 1 + k - 1 >= p[l]
            // p[l] <= p[r + 1] + (-r + l + k - 2)
            edges.push_back({ r + 1, l, -r + l + k - 2 });
        }
    }

    vector<int> dist(n + 1, INT_MAX / 3);
    dist[0] = 0;

    bool solution_found;

    for (int i = 0; i < n + 1; i++) {
        solution_found = true;

        for (edge const& e : edges) {
            int const new_dist = dist[e.from] + e.w;

            if (new_dist < dist[e.to]) {
                dist[e.to] = new_dist;
                solution_found = false;
            }
        }

        if (solution_found)
            break;
    }

    if (!solution_found) {
        cout << "-1\n";
        return 0;
    }

    for (int i = 0; i < n; i++)
        cout << dist[i + 1] - dist[i] << " ";
    cout << "\n";
}

• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 25 / 25
• Subtask 4: 55 / 55