Submission #741903

#	Time	Username	Problem	Language	Result	Execution time	Memory
741903		t6twotwo	Game (APIO22_game)	C++17	60 / 100	4056 ms	180000 KiB

game

#include "game.h"
#include <bits/stdc++.h>
using namespace std;
int N, K;
vector<vector<bool>> a, b;
vector<vector<int>> adj, jda;
void init(int n, int k) {
    N = n;
    K = k;
    adj.resize(N);
    jda.resize(N);
    a = vector(N, vector<bool>(K));
    b = vector(K, vector<bool>(N));
    for (int i = 0; i + 1 < K; i++) {
        adj[i].push_back(i + 1);
        jda[i + 1].push_back(i);
        for (int j = i + 1; j < K; j++) {
            a[i][j] = 1;
            b[i][j] = 1;
        }
    }
}
int add_teleporter(int u, int v) {
    if (u < K && v < K) {
        return v <= u;
    }
    adj[u].push_back(v);
    jda[v].push_back(u);
    for (int i = 0; i < K; i++) {
        if (b[i][u] || i == u) {
            b[i][v] = 1;
            queue<int> q;
            q.push(v);
            while (!q.empty()) {
                int x = q.front();
                q.pop();
                for (int y : adj[x]) {
                    if (!b[i][y]) {
                        b[i][y] = 1;
                        q.push(y);
                    }
                }
            }
        }
    }
    for (int i = 0; i < K; i++) {
        if (a[v][i] || i == v) {
            a[u][i] = 1;
            queue<int> q;
            q.push(u);
            while (!q.empty()) {
                int x = q.front();
                q.pop();
                for (int y : jda[x]) {
                    if (!a[y][i]) {
                        a[y][i] = 1;
                        q.push(y);
                    }
                }
            }
        }
    }
    bool flag = 0;
    for (int i = 0; i < K; i++) {
        if (a[u][i]) {
            flag = 1;
        }
        if (flag && b[i][u]) {
            return 1;
        }
    }
    return 0;
}

• Subtask 1: 2 / 2
• Subtask 2: 10 / 10
• Subtask 3: 18 / 18
• Subtask 4: 30 / 30
• Subtask 5: 0 / 40