Submission #372482

#	Time	Username	Problem	Language	Result	Execution time	Memory
372482		idk321	Game (IOI14_game)	C++11	100 / 100	511 ms	25344 KiB

game

#include "game.h"

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


const int N = 1500;

int sz[N];
int p[N];
int eBetween[N][N];
int n;

int getRoot(int node)
{
    if (p[node] == node) return node;
    p[node] = getRoot(p[node]);
    return p[node];
}




void initialize(int n1) {
    n = n1;
    for (int i = 0; i < n; i++)
    {
        p[i] = i;
        sz[i] = 1;
    }
    for (int i = 0; i < n; i++)
    {
        for (int j = i + 1; j < n; j++)
        {
            eBetween[i][j] = 1;
            eBetween[j][i] = 1;
        }
    }
}

int hasEdge(int u, int v) {


    u = getRoot(u);
    v = getRoot(v);
    if (eBetween[u][v] == 1)
    {
        if (sz[u] < sz[v])
        {
            swap(u, v);
        }
        sz[u] += sz[v];
        for (int i = 0; i < n; i++)
        {
            int num = eBetween[v][i];
            eBetween[u][i] += num;
            eBetween[i][u] += num;
        }
        p[v] = u;

        return 1;
    } else
    {
        eBetween[u][v]--;
        eBetween[v][u]--;
        return 0;
    }
}

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