Submission #1103816

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103816		epicci23	Game (APIO22_game)	C++17	30 / 100	15 ms	20304 KiB

game

#include "bits/stdc++.h"
#include "game.h"
//#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;

const int N = 3e5 + 5;
const int BL = 600;
vector<int> v[N],g[N];
int n,m,k,out[N],in[N],bin[N],bout[N];
bool ok=0;

void upd_in(int a,int val){
  if(in[a]<val || ok) return;
  //cout << "updin: " << a << ' ' << val << '\n';
  in[a]=min(in[a],val);
  bin[a]=min(bin[a],val/BL);
  if(in[a]<out[a] || bin[a]<bout[a]){
    ok=1;
    return;
  }
  if(in[a]==out[a] && a>=k){
  	ok=1;
    return;
  }
  for(int x:g[a]) if(in[x]>val && bin[x]==bin[a]) upd_in(x,val);
}

void upd_out(int a,int val){
  if(out[a]>val || ok) return;
  //cout << "updout: " << a << ' ' << val << '\n';
  out[a]=max(out[a],val);
  bout[a]=max(bout[a],val/BL);
  if(in[a]<out[a] || bin[a]<bout[a]){
    ok=1;
    return;
  }
  if(in[a]==out[a] && a>=k){
  	ok=1;
    return;
  }
  for(int x:v[a]) if(out[x]<val && bout[x]==bout[a]) upd_out(x,val);
}

void upd_bin(int a,int val,int real){
  if(bin[a]<=val || ok) return;
  bin[a]=val;
  //cout << "updbin: " << a << ' ' << val << '\n';
  in[a]=min(in[a],real);
  if(bin[a]<bout[a] || in[a]<out[a]){
    ok=1;
    return;
  }
  if(bin[a]==bout[a]){
  	upd_in(a,in[a]);
  	upd_in(in[a],in[a]);
  }
  for(int x:g[a]) if(bin[x]>val) upd_bin(x,val,in[a]);
}

void upd_bout(int a,int val,int real){
  if(bout[a]>=val || ok) return;
  bout[a]=val;
  //cout << "updbout: " << a << ' ' << val << '\n';
  out[a]=max(out[a],real);
  if(bin[a]<bout[a] || in[a]<out[a]){
    ok=1;
    return;
  }
  if(bin[a]==bout[a]){
  	upd_out(a,out[a]);
  	upd_out(out[a],out[a]);
  }
  for(int x:v[a]) if(bout[x]<val) upd_bout(x,val,out[a]);
}

void init(int _n,int _k){
  n=_n,k=_k;
  for(int i=1;i<k;i++){
  	v[i-1].push_back(i);
  	g[i].push_back(i-1);
  }
  fill(bout,bout+N,-1);
  fill(bin,bin+N,k);
  fill(out,out+N,-1);
  fill(in,in+N,k);
  for(int i=0;i<k;i++) bin[i]=bout[i]=i/BL;
  for(int i=0;i<k;i++) in[i]=out[i]=i;
}

int add_teleporter(int a, int b){
  if(a==b && a<k) ok=1;
  if(a<k && b<k && a>b) ok=1;
  v[a].push_back(b);
  g[b].push_back(a);
  upd_bout(b,bout[a],out[a]);
  upd_bin(a,bin[b],in[b]);
  upd_bout(bout[a],bout[a],out[bout[a]]);
  upd_bin(bin[b],bin[b],in[bin[b]]);
  upd_in(a,in[b]);
  upd_out(b,out[a]);
  return ok;
}

/*void _(){
  cin >> n >> m >> k;
  for(int i=1;i<k;i++){
  	v[i-1].push_back(i);
  	g[i].push_back(i-1);
  }
  fill(bout,bout+N,-1);
  fill(bin,bin+N,k);
  fill(out,out+N,-1);
  fill(in,in+N,k);
  for(int i=0;i<k;i++) bin[i]=bout[i]=i/BL;
  for(int i=0;i<k;i++) in[i]=out[i]=i;
  for(int i=1;i<=m;i++){
  	int a,b;
  	cin >> a >> b;
  	if(a==b && a<k) ok=1;
  	if(a<k && b<k && a>b) ok=1;
  	v[a].push_back(b);
  	g[b].push_back(a);
    upd_bout(b,bout[a],out[a]);
    upd_bin(a,bin[b],in[b]);
    upd_bout(bout[a],bout[a],out[bout[a]]);
    upd_bin(bin[b],bin[b],in[bin[b]]);
    upd_in(a,in[b]);
    upd_out(b,out[a]);
  	cout << ok << '\n';
  }
}

int32_t main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tc=1;//cin >> tc;
  while(tc--) _();
  return 0;
}*/

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