Submission #770973

#	Time	Username	Problem	Language	Result	Execution time	Memory
770973		loctildore	Game (IOI14_game)	C++14	100 / 100	314 ms	25800 KiB

game

#include "game.h"
#include <bits/stdc++.h>
using namespace std;
// trans rights
#define ll long long
#define f first
#define s second
#define endl '\n'
#define all(x) begin(x), end(x)

int par[1569];
vector<int> grp[1569];
int done[1569][1569];

int fnd(int x) {
    return x == par[x] ? x : (par[x] = fnd(par[x]));
}

void initialize(int n) {
    for (int i = 0; i < n; i++) {
        par[i] = i;
        grp[i].push_back(i);
    }
}

int hasEdge(int u, int v) {
    done[u][v] = done[v][u] = true;
    u = fnd(u); v = fnd(v);
    if (u == v) return 0;
    for (auto x : grp[u]) {
        for (auto y : grp[v]) {
            if (!done[x][y]) return 0;
        }
    }
    if (grp[u].size() < grp[v].size()) swap(u, v);
    for (auto i : grp[v]) grp[u].push_back(i);
    par[v] = u;
    return 1;
}

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