Submission #436763

#	Time	Username	Problem	Language	Result	Execution time	Memory
436763		Tangent	Game (IOI14_game)	C++17	42 / 100	1100 ms	12632 KiB

game

#include "game.h"
#include "bits/stdc++.h"
 
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<vii> vvii;
typedef vector<vll> vvll;
typedef vector<vpii> vvpii;
typedef vector<vpll> vvpll;
 
#define ffor(i, a, b) for (ll i = (a); i < (ll)(b); i++)
#define fford(i, a, b) for (ll i = (a); i > (ll)(b); i--)
#define rep(i, n) ffor(i, 0, n)
#define forin(x, a) for (auto &x: a)
#define all(a) a.begin(), a.end()

int n;
vector<set<int>> adj;
int queries;

void initialize(int N) {
    queries = 0;
    n = N;
    adj.assign(n, {});
    rep(i, n - 1) {
        ffor(j, i + 1, n) {
            adj[i].emplace(j);
            adj[j].emplace(i);
        }
    }
}

int hasEdge(int u, int v) {
    adj[u].erase(v);

    vector<bool> vis(n);
    int cnt = 1;
    vis[u] = true;
    deque<int> q = {u};
    while (!q.empty()) {
        int uu = q.front();
        q.pop_front();

        forin(vv, adj[uu]) {
            if (!vis[vv]) {
                vis[vv] = true;
                cnt++;
                q.emplace_back(vv);
            }
        }
    }
    if (cnt == n) {
        adj[v].erase(u);
        return 0;
    } else {
        adj[u].emplace(v);
        return 1;
    }
}

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