Submission #832322

#	Time	Username	Problem	Language	Result	Execution time	Memory
832322		finn__	Toy Train (IOI17_train)	C++17	0 / 100	4 ms	852 KiB

train

#include "train.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v)
{
    size_t const n = a.size(), m = u.size();
    int subtask = 1;
    for (size_t i = 0; i < m; ++i)
        if (u[i] != v[i] && u[i] + 1 != v[i])
        {
            subtask = 3;
            break;
        }

    vector<int> w(n);

    if (subtask == 1)
    {
        vector<bool> has_edge(n), has_loop(n);
        for (size_t i = 0; i < m; ++i)
        {
            if (u[i] == v[i])
                has_loop[u[i]] = 1;
            else
                has_edge[u[i]] = 1;
        }

        for (size_t i = 0; i < n; ++i)
        {
            for (size_t j = i; j < n; ++j)
                if (has_loop[j])
                {
                    if (!(a[j] ^ r[j]))
                    {
                        w[i] = a[j];
                        break;
                    }
                    if (!has_edge[i])
                    {
                        w[i] = !a[j];
                        break;
                    }
                }
        }
    }

    for (int &x : a)
        if (!x)
        {
            subtask = 4;
            break;
        }

    if (subtask == 3)
    {
    }
    else
    {
    }

    return w;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 12
• Subtask 6: 0 / 51