Submission #1062878

#	Time	Username	Problem	Language	Result	Execution time	Memory
1062878		fv3	Fountain Parks (IOI21_parks)	C++17	5 / 100	53 ms	10232 KiB

parks

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

using namespace std;

int construct_roads(vector<int> x, vector<int> y) 
{
    if (x.size() == 1) 
    {
        build({}, {}, {}, {});
        return 1;
    }

    // x[i] = 2
    const int N = x.size();

    vector<pair<int, int>> h(N);
    for (int i = 0; i < N; i++)
        h[i] = {y[i], i};
    sort(h.begin(), h.end());

    vector<int> u(N-1), v(N-1), a(N-1), b(N-1);
    for (int i = 0; i < N - 1; i++)
    {
        if (h[i].first + 2 != h[i+1].first) return 0;
        u[i] = h[i].second; v[i] = h[i+1].second;
        a[i] = x[0] - 1; b[i] = h[i].first + 1;
    }

    build(u, v, a, b);
    return 1;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30