Submission #752608

#	Time	Username	Problem	Language	Result	Execution time	Memory
752608		Dan4Life	Game (APIO22_game)	C++17	2 / 100	6 ms	9680 KiB

game

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int mxN = (int)2e5+10;
int n, k, sm[mxN], bg[mxN];
vector<int> adj[mxN], radj[mxN];

void init(int N, int K) {
    n = N; k = K;
    for(int i = 0; i < k; i++) 
        sm[i]=i, bg[i] = k-1;
    for(int i = k; i < n; i++)
        sm[i] = bg[i] = n+1;
}

void dfs(int s, int c){ 
    if(sm[s]<=c) return;
    sm[s] = min(sm[s], c); if(c<k) bg[s]=k-1;
    for(auto u : radj[s]) dfs(u,c);
}

int add_teleporter(int u, int v) {
    if(u>=v and u<k) return 1;
    if(max(u,v)<k) return 0;
    radj[v].pb(u); dfs(u, sm[v]); 
    return (sm[v]<=bg[u] and bg[u]<=k);
}

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