Submission #1053106

#	Time	Username	Problem	Language	Result	Execution time	Memory
1053106		Faisal_Saqib	Portal (BOI24_portal)	C++17	1 / 100	2107 ms	231540 KiB

Main

#warning Check FastIO
#ifdef ONLINE_JUDGE
    #pragma GCC optimize("Ofast")
    #pragma GCC target("avx,avx2,fma")
#endif
#include <iostream>
#include <algorithm>
#include <climits>
#include <queue>
#include <cmath>
#include <map>
#include <set>
#include <random>
#include <chrono>
#include <iomanip>
#include <vector>
#include <fstream>
using namespace std;
#define vll vector<ll>
#define sll set<ll>
#define vstr vector<string>
#define ll long long
#define ld long double
#define supra main
#define pb push_back
#define add insert
#define rall(x) rbegin(x),rend(x)
#define all(x) (x).begin(),(x).end()
#define I ios_base::sync_with_stdio(false);
#define Hear cin.tie(NULL);
#define Shots cout.tie(NULL);
#define Ratatatata
#define bits_on(a) (__builtin_popcountll(a))
#define mx_pw2(a) (__builtin_ctzll(a))
mt19937 RNG(chrono::steady_clock::now().time_since_epoch().count());  
#define SHUFFLE(v) shuffle(all(v), RNG); 
const ll inf=LLONG_MAX;
void input(vll& a)
{
    for(auto& i:a)
        cin>>i;
}
void pyn(bool a)
{
    cout<<(a?"YES":"NO")<<endl;
}
ll powmod(ll a,ll b,ll modulo)
{
  if(b==0){
    return 1;
  }
  ll temp=powmod(a,b/2,modulo);
  if(b%2==0){
    return (temp*temp)%modulo;
  }
  else{
    return (a*((temp*temp)%modulo))%modulo;
  }
}

bool Prime(ll n){
    for (ll i = 2; i*i <= n; i++)
        if (n % i == 0)
            return false;
    return (n>1);
}
const int N=3e5;
const int MX=401;
int par[N];
map<pair<int,int>,int>tp;
int nxp=1;
int mapping(int x,int y)
{
    auto it=tp.find({x,y});
    if(it==tp.end())
    {
        tp[{x,y}]=nxp;
        par[nxp]=nxp;
        nxp++;
    }
    return tp[{x,y}];
}
int comp=0;
int get(int x)
{
    if(par[x]==x)return x;
    return par[x]=get(par[x]);
}
void merge(int x,int y)
{
    x=get(x);
    y=get(y);
    if(x==y)return;
    comp--;
    par[x]=y;
}
const int CP=100;
void solve()
{
    ll n;
    cin>>n;  
    for(int j=0;j<N;j++)
    {
        par[j]=j;
    }
    vector<pair<ll,ll>> a;
    for(int i=0;i<n;i++)
        {
            ll x,y;
            cin>>x>>y;
            x+=100;
            y+=100;
            a.pb({x,y});
        }
    map<pair<ll,ll>,ll> lasp;
    ll tot=0;
    for(int x=-100;x<=100;x++)
    {
        for(int y=-100;y<=100;y++)
        {
            tot++;
            for(int j=0;j<n;j++)
            {
                ll distx=a[j].first-x;
                ll disty=a[j].second-y;
                auto it=lasp.find({distx,disty});
                if(it!=lasp.end())
                    merge((*it).second,mapping(x,y));
                lasp[{distx,disty}]=mapping(x,y);
            }
        }
    }
    if(comp==0)
    {
        cout<<-1<<endl;
    }
    else
    {
        cout<<comp+tot<<endl;
    }
}
int supra(){
    I Hear Shots Ratatatata
    ll tqwertyuiop=1;
    for(int tp=1;tp<=tqwertyuiop;tp++)
    {
        // cout<<"Case #"<<tp<<": ";
        solve();
    }
    return 0;
}
/*
Bro use only in a emergency 
this is kind of hacking
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
*/

Compilation message (stderr)

Main.cpp:1:2: warning: #warning Check FastIO [-Wcpp]
    1 | #warning Check FastIO
      |  ^~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 29
• Subtask 5: 0 / 15
• Subtask 6: 0 / 35