Submission #824238

#	Time	Username	Problem	Language	Result	Execution time	Memory
824238		rnl42	Game (IOI14_game)	C++14	0 / 100	1 ms	212 KiB

game

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

vector<int> uf;
int root(int u) { return u == uf[u] ? u : uf[u] = root(uf[u]); }
void merge(int u, int v) { uf[root(u)] = root(v); }

int N;
vector<vector<int>> madj;

void initialize(int __N) {
    N = __N;
    madj.assign(N, vector<int>(N, -1));
    uf.resize(N);
    iota(uf.begin(), uf.end(), 0);
}

int hasEdge(int u, int v) {
    bool choice = true;
    for (int i = 0; i < N; i++) {
        if (u != i && v != i && madj[u][i] == -1 && (root(i) == root(v) || root(i) == root(u))) {
            choice = false;
        }
        if (u != i && v != i && madj[v][i] == -1 && (root(i) == root(v) || root(i) == root(u))) {
            choice = false;
        }
    }
    madj[u][v] = madj[v][u] = choice;
    if (choice) {
        merge(u, v);
    }

    return choice;
}

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