Submission #576006

#	Time	Username	Problem	Language	Result	Execution time	Memory
576006		WongChun1234	Game (APIO22_game)	C++17	2 / 100	10 ms	14396 KiB

game

#include "game.h"
#include<bits/stdc++.h>
using namespace std;
const int N=300050;
int n,k,l[N],r[N];
vector<int> adj[N],radj[N];
void init(int nn, int kk) {
	n=nn; k=kk;
	for (int i=0;i<=k;i++) l[i]=i,r[i]=i+1;
	for (int i=k+1;i<=n;i++) l[i]=0,r[i]=k-1;
	for (int i=0;i<=n;i++) adj[i].clear(),radj[i].clear();
}

bool addedge(int u,int v){
	//cerr<<u<<":"<<l[u]<<"-"<<r[u]<<"->"<<v<<":"<<l[v]<<"-"<<r[v]<<"\n";
	if (r[u]<=l[v]) return 0;
	if (l[u]>=r[v]) return 1;
	if (r[v]<=(l[u]+r[u])/2){
		r[u]=(l[u]+r[u])/2;
		for (int i:radj[u]) if (addedge(i,u)) return 1;
	}else if (l[u]>(l[v]+r[v])/2){
		l[v]=(l[v]+r[v])/2+1;
		for (int i:adj[v]) if (addedge(v,i)) return 1;
	}
	return 0;
}

int add_teleporter(int u, int v) {
	u++;
	if (v>k) v++;
	adj[u].push_back(v);
	radj[v].push_back(u);
	return addedge(u,v);
}

/*
6 5 3
3 4
5 0
4 5
5 3
1 4

*/

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