Submission #988971

#	Time	Username	Problem	Language	Result	Execution time	Memory
988971		Otalp	Game (APIO22_game)	C++17	30 / 100	4011 ms	12056 KiB

game

#include "game.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back


vector<int> q[200100], dq[200100];
int n, k;

void init(int N, int K) {
    n = N;
    k = K;
    for(int i=0; i<n; i++){
        q[i].clear();
        dq[i].clear();
    }
    for(int i=0; i<k-1; i++){
        q[i].pb(i + 1);
        dq[i + 1].pb(i);
    }
}

int dp[200100], us[200100];

void dfs(int v){
    us[v] = 1;
    for(int to: q[v]){
        if(!us[to]) dfs(to);
        dp[v] = min(dp[v], dp[to]);
        dp[v] = min(dp[v], to);
    }
}

int add_teleporter(int u, int v) {
    for(int i=0; i<n; i++){
        us[i] = 0;
        dp[i] = 1e9;
    }
    q[u].pb(v);
    dq[v].pb(u);
    for(int i=0; i<n; i++){
        if(us[i]) continue;
        dfs(i);
    }
    for(int i=0; i<k; i++){
        if(dp[i] <= i) return 1;
    }
    return 0;
}

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