Submission #1169568

#	Time	Username	Problem	Language	Result	Execution time	Memory
1169568		lighton	Game (APIO22_game)	C++20	2 / 100	25 ms	47348 KiB

game

#include "game.h"
#include <bits/stdc++.h>
#define forf(i,a,b) for(int i = a; i<=b; i++)
#define forb(i,b,a) for(int i = b; i>=a; i--)
using namespace std;
int N,K;
int S[1000001][21];
vector<int> adj[1000001],radj[1000001];
void dnc(int dep, int s, int e){
    if(s>e) return;
    int m = s+e>>1;
    forf(i,2*s,2*m) S[i][dep] = 1;
    forf(i,2*m+1,2*e+1) S[i][dep] = 2;
    dnc(dep+1,s,m-1), dnc(dep+1,m+1,e);
}

int f = 0;
void upd(int now){
    for(auto i : adj[now]){
        int p = 0;
        while(p<20 && S[now][p] == S[i][p]) p++;
        if((S[now][p]&2) && (S[i][p]&1)) f = 1;
        if(S[now][p] == 2 && S[i][p] == 0){
            while(p<20 && S[now][p] == 2) S[i][p] = 2, p++;
            upd(i);
        }
        if(S[i][p] == 1 && S[now][p] == 0){
            while(p<20 && S[i][p] == 1) S[now][p] = 1, p++;
            upd(now); return;
        }
    }
}

void init(int n, int k){
    N =n, K=k;
    dnc(0,0,k-1);
    forf(i,0,2*k-2) adj[i].push_back(i+1), radj[i+1].push_back(i);
}
int add_teleporter(int u, int v) {
    if(u < K) u = 2*u+1;
    else u += 2*K;
    if(v < K) v = 2*v;
    else v += 2*K;

    adj[u].push_back(v); radj[v].push_back(u);
    upd(u);
    if(f==1) return 1;
    return 0;
}

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