Submission #744873

#TimeUsernameProblemLanguageResultExecution timeMemory
744873josanneo22Game (APIO22_game)C++17
60 / 100
1358 ms32748 KiB
#include "game.h"
#include <bits/stdc++.h>
using namespace std;
int n,k;
typedef pair<int,int> ii;
#define ff first
#define ss second
const int maxn = 3e4 + 10;
vector <int> adj[maxn];
bool vis[1010][maxn];
stack<int> st;
bool dau[maxn];
bool ccheck = 0;
void dfs(int id, int x)
{
    vis[id][x] = 1;
    if (x <= id) ccheck = 1;
    for (int i:adj[x])
        if (!vis[id][i]) dfs(id,i);
}
 
void init(int N, int K) {
    n=N; k=K; ccheck=0;
    for (int i=1; i<=n; i++) adj[i].clear();
    for (int i=2; i<=k; i++) adj[i-1].push_back(i);
    for (int i=1; i<k; i++)
        dfs(i,i+1);
}
 
int add_teleporter(int u, int v) {
    u++; v++;
    adj[u].push_back(v);
    for (int i=1; i<=k; i++)
        if ((u==i||vis[i][u])&&!vis[i][v]) dfs(i,v);
    return ccheck;
}
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