Submission #573482

#	Time	Username	Problem	Language	Result	Execution time	Memory
573482		MohamedFaresNebili	Game (IOI14_game)	C++14	15 / 100	1 ms	416 KiB

game

#include <bits/stdc++.h>
#include "game.h"
#include <ext/pb_ds/assoc_container.hpp>

        using namespace std;
        using namespace __gnu_pbds;

        using ll = long long;
        using ii = pair<int, int>;
        using vi = vector<int>;

        #define pb push_back
        #define pp pop_back
        #define ff first
        #define ss second
        #define lb lower_bound

        typedef tree<int, null_type, less<int>, rb_tree_tag,
            tree_order_statistics_node_update> indexed_set;

        set<int> adj[1501];
        bool vis[1501]; int curr, t, N;

        void initialize(int n) {
            N = n;
            for(int l = 0; l < n; l++) {
                for(int i = 0; i < n; i++) {
                    if(l == i) continue;
                    adj[l].insert(i);
                }
            }
            curr = (n * (n - 1)) / 2;
        }
        int hasEdge(int u, int v) {
            if(t + curr == N - 1) {
                vis[u] = 1, vis[v] = 1;
                curr--; t++; return 1;
            }
            curr--;
            if(!vis[u] && !vis[v]) {
                if(adj[u].size() == 1 || adj[v].size() == 1) {
                    vis[u] = vis[v] = 1;
                    t++; return 1;
                }
                adj[u].erase(v), adj[v].erase(u);
                return 0;
            }
            if(vis[u] && vis[v]) {
                adj[u].erase(v), adj[v].erase(u);
                return 0;
            }
            if(vis[u]) swap(u, v);
            if(adj[u].size() == 1) {
                vis[u] = 1; t++; return 1;
            }
            adj[u].erase(v), adj[v].erase(u);
            return 0;
        }

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