Submission #1062655

#	Time	Username	Problem	Language	Result	Execution time	Memory
1062655		damjandavkov	Game (IOI14_game)	C++17	42 / 100	1071 ms	14936 KiB

game

#include "game.h"
#include <bits/stdc++.h>
using namespace std;
vector<set<int> > v;
vector<int> pa;
vector<bool> w;
int N;
int dfs(int i)
{
    int s = 1;
    for (auto h : v[i])
    {
        if (!w[h])
        {
            pa[h] = i;
            w[h] = 1;
            s += dfs(h);
        }
    }
    return s;
}
void initialize(int n)
{
    int i, j;
    N = n;
    v.resize(n);
    pa.resize(n);
    w.resize(n);
    vector<int> p(n);
    for (i = 0; i < n; i++)
        p[i] = i;
    random_shuffle(p.begin(), p.end());
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            if (j != i)
                v[p[i]].insert(p[j]);
        }
    }
    for (i = 0; i < n; i++)
        w[i] = 0;
    w[0] = 1;
    pa[0] = 0;
    dfs(0);
}
int hasEdge(int a, int b)
{
    v[a].erase(b);
    v[b].erase(a);
    if (pa[a] != b && pa[b] != a)
        return 0;
    int s = 0;
    s = rand() % N;
    for (int i = 0; i < N; i++)
        w[i] = 0;
    w[s] = 1;
    pa[s] = s;
    if (dfs(s) == N)
        return 0;
    v[a].insert(b);
    v[b].insert(a);
    return 1;
}

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 0 / 58