Submission #1248181

#	Time	Username	Problem	Language	Result	Execution time	Memory
1248181		Zbyszek99	Airline Route Map (JOI18_airline)	C++20	37 / 100	168 ms	20128 KiB

Alice

#include "Alicelib.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define ull unsigned long long
#define ff first
#define ss second
#define pii pair<int,int>
#define pll pair<long long, long long>
#define vi vector<int>
#define vl vector<long long>
#define pb push_back
#define rep(i, b) for(int i = 0; i < (b); ++i)
#define rep2(i,a,b) for(int i = a; i <= (b); ++i)
#define rep3(i,a,b,c) for(int i = a; i <= (b); i+=c)
#define count_bits(x) __builtin_popcountll((x))
#define all(x) (x).begin(),(x).end()
#define siz(x) (int)(x).size()
#define forall(it,x) for(auto& it:(x))
using namespace __gnu_pbds;
using namespace std;
typedef tree<int, null_type, less<int>, rb_tree_tag,tree_order_statistics_node_update> ordered_set;
//mt19937 mt;void random_start(){mt.seed(chrono::time_point_cast<chrono::milliseconds>(chrono::high_resolution_clock::now()).time_since_epoch().count());}
//ll los(ll a, ll b) {return a + (mt() % (b-a+1));}
const int INF = 1e9+50;
const ll INF_L = 1e18+40;
const ll MOD = 1e9+7;

void Alice(int n, int m, int A[], int B[])
{
	if(n == 1)
	{
		InitG(1,0);
		return;
	}
	if(n == 2)
	{
		InitG(2,m);
		if(m == 1) MakeG(0,0,1);
		return;
	}
	vector<pii> edges;
	rep(i,m)
	{
		edges.pb({A[i],B[i]});
	}
	rep2(i,n+1,n+9)
	{
		edges.pb({i-1,i});
	}
	edges.pb({n+9,n+7});
	edges.pb({n+9,n+6});
	rep(i,n)
	{
		rep(bit,10)
		{
			if((i+1) & (1 << bit))
			{
				edges.pb({i,bit+n});
			}
		}
	}
	rep(i,n)
	{
		edges.pb({i,n+10});
	}
	edges.pb({n+10,n+11});
	InitG(n+12,siz(edges));
	rep(i,siz(edges))
	{
		MakeG(i,edges[i].ff,edges[i].ss);
	}
}

Bob

#include "Boblib.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define ull unsigned long long
#define ff first
#define ss second
#define pii pair<int,int>
#define pll pair<long long, long long>
#define vi vector<int>
#define vl vector<long long>
#define pb push_back
#define rep(i, b) for(int i = 0; i < (b); ++i)
#define rep2(i,a,b) for(int i = a; i <= (b); ++i)
#define rep3(i,a,b,c) for(int i = a; i <= (b); i+=c)
#define count_bits(x) __builtin_popcountll((x))
#define all(x) (x).begin(),(x).end()
#define siz(x) (int)(x).size()
#define forall(it,x) for(auto& it:(x))
using namespace __gnu_pbds;
using namespace std;
typedef tree<int, null_type, less<int>, rb_tree_tag,tree_order_statistics_node_update> ordered_set;
//mt19937 mt;noid random_start(){mt.seed(chrono::time_point_cast<chrono::milliseconds>(chrono::high_resolution_clock::now()).time_since_epoch().count());}
//ll los(ll a, ll b) {return a + (mt() % (b-a+1));}
const int INF = 1e9+50;
const ll INF_L = 1e18+40;
const ll MOD = 1e9+7;

vi graph[1015];
bool odw[1015];
int bit[1015];
int rel_num[1015];

void Bob(int n, int U, int C[], int D[])
{
	if(n == 1)
	{
		InitMap(1,0);
		return;
	}
	if(n == 2)
	{
		InitMap(2,U);
		if(U == 1) MakeMap(0,1);
		return;
	}
	int pom;
	rep(i,U)
	{
		graph[C[i]].pb(D[i]);
		graph[D[i]].pb(C[i]);
	}
	rep(i,n)
	{
		if(siz(graph[i]) == 1) pom = i;
	}
	int pom2 = graph[pom][0];
	rep(i,n) odw[i] = 1;
	odw[pom] = 0;
	odw[pom2] = 0;
	forall(it,graph[pom2])
	{
		odw[it] = 0;
	}
	int bit_9 = 0;
	int bit_0 = 0;
	rep(i,n) if(odw[i])
	{
		int cnt = 0;
		forall(it,graph[i])
		{
			if(odw[it]) cnt++;
		}
		if(cnt == 3) bit_9 = i;
		if(cnt == 1) bit_0 = i;
		bit[i] = -1;
	}
	bit[bit_9] = 9;
	int cur_b = 0;
	while(true)
	{	
		bit[bit_0] = cur_b++;
		int nxt = -1;
		forall(it,graph[bit_0])
		{
			if(odw[it] && bit[it] == -1) nxt = it;
		}
		if(nxt == -1) break;
		bit_0 = nxt;
	}
	vector<pii> edges;
	rep(i,n) if(!odw[i] && i != pom && i != pom2)
	{
		int num = 0;
		forall(it,graph[i])
		{
			if(odw[it])
			{
				num += (1 << bit[it]);
			}
			else if(it != pom && it != pom2 && i < it) edges.pb({i,it});
		}
		rel_num[i] = num-1;
	}
	InitMap(n-12,siz(edges));
	forall(it,edges)
	{
		MakeMap(rel_num[it.ff],rel_num[it.ss]);
	}
}

• Subtask 1: 22 / 22
• Subtask 2: 15 / 15
• Subtask 3: 0 / 63