結果

問題 No.2675 KUMA
ユーザー TKTYI
提出日時 2024-03-15 22:05:52
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 41 ms / 2,000 ms
コード長 3,421 bytes
コンパイル時間 5,293 ms
コンパイル使用メモリ 280,516 KB
最終ジャッジ日時 2025-02-20 05:12:24
ジャッジサーバーID
（参考情報） 		judge2 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 47
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
typedef long long int ll;
typedef long double ld;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef vector<vvi> vvvi;
typedef vector<vvvi> vvvvi;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<vvb> vvvb;
typedef vector<vvvb> vvvvb;
typedef pair<ll,ll> pi;
typedef pair<ll,pi> ppi;
typedef pair<ll,ppi> pppi;
typedef pair<ll,pppi> ppppi;
#define FOR(i,l,r) for(ll i=l;i<r;i++)
#define REP(i,n) FOR(i,0,n)
#define RFOR(i,l,r) for(ll i=r-1;i>=l;i--)
#define RREP(i,n) RFOR(i,0,n)
#define ALL(x) x.begin(),x.end()
#define F first
#define S second
#define BS(A,x) binary_search(ALL(A),x)
#define LB(A,x) (ll)(lower_bound(ALL(A),x)-A.begin())
#define UB(A,x) (ll)(upper_bound(ALL(A),x)-A.begin())
#define COU(A,x) (UB(A,x)-LB(A,x))
#define sz(c) ((ll)(c).size())
/*
#include<boost/multiprecision/cpp_int.hpp>
namespace mp=boost::multiprecision;
using Bint=mp::cpp_int;
*/
template<typename T>using min_priority_queue=priority_queue<T,vector<T>,greater<T>>;
template<typename T1,typename T2>ostream&operator<<(ostream&os,pair<T1,T2>&p){os<<p.F<<" "<<p.S;return os;}
template<typename T1,typename T2>istream&operator>>(istream&is,pair<T1,T2>&p){is>>p.F>>p.S;return is;}
template<typename T>ostream&operator<<(ostream&os,vector<T>&v){REP(i,sz(v))os<<v[i]<<(i+1!=sz(v)?" ":"");return os;}
template<typename T>istream&operator>>(istream&is,vector<T>&v){for(T&in:v)is>>in;return is;}
template<class T>bool chmax(T&a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T>bool chmin(T&a,T b){if(b<a){a=b;return 1;}return 0;}
ld dist(ld x1,ld y1,ld x2,ld y2){return sqrtl((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));}
vi fast_mod_convolution(vi&a,vi&b,ll mod){
  const ll m1=167772161,m2=469762049,m3=1224736769;
  const ll m1_inv_m2=inv_mod(m1,m2);
  const ll m12_inv_m3=inv_mod(m1*m2,m3);
  const ll m12_mod=m1*m2%mod;
  auto x=convolution<m1>(a,b);
  auto y=convolution<m2>(a,b);
  auto z=convolution<m3>(a,b);
  vector<ll>ret(sz(a)+sz(b)-1);
  REP(i,sz(ret)){
    ll v1=(y[i]-x[i])*m1_inv_m2%m2;if(v1<0)v1+=m2;
    ll v2=(z[i]-(x[i]+m1*v1)%m3)*m12_inv_m3%m3;if(v2<0)v2+=m3;
    ret[i]=(x[i]+m1*v1+m12_mod*v2)%mod;
  }
  return ret;
}
const ld EPS=1e-8;
//*
using mint=modint998244353;
const ll mod=998244353;
//*/
/*
using mint=modint1000000007;
const ll mod=1000000007;
//*/
//using mint=modint;
//*
typedef vector<mint> vm;
typedef vector<vm> vvm;
typedef vector<vvm> vvvm;
typedef vector<vvvm> vvvvm;
ostream&operator<<(ostream&os,mint&a){os<<a.val();return os;}
//*/
int main(){
    ll N;cin>>N;
    vector<pi>P(N);cin>>P;
    sort(ALL(P));
    vector<pi>Q={pi(2,1),pi(2,-1),pi(1,2),pi(-1,2),pi(-2,1),pi(-2,-1),pi(1,-2),pi(-1,-2)};
    vector<pi>S;
    for(auto[x,y]:P)for(auto[dx,dy]:Q)S.emplace_back(pi(x+dx,y+dy));
    sort(ALL(S));
    S.erase(unique(ALL(S)),S.end());
    vvi E;
    for(auto[x,y]:S)if(!COU(P,pi(x,y))){
        vi A;
        REP(i,4){
            ll t=0;
            if(COU(P,pi(x+Q[2*i].F,y+Q[2*i].S)))t+=1<<LB(P,pi(x+Q[2*i].F,y+Q[2*i].S));
            if(COU(P,pi(x+Q[2*i+1].F,y+Q[2*i+1].S)))t+=1<<LB(P,pi(x+Q[2*i+1].F,y+Q[2*i+1].S));
            if(t)A.emplace_back(t);
        }
        E.emplace_back(A);
    }
    sort(ALL(E));
    E.erase(unique(ALL(E)),E.end());
    ll M=sz(E);
    vvi DP(M+1,vi(1<<N,1e18));
    DP[0][0]=0;
    REP(i,M){
        DP[i+1]=DP[i];
        REP(j,1<<N)for(auto t:E[i])chmin(DP[i+1][j|t],DP[i][j]+1);
    }
    if(DP[M].back()>1e17)cout<<-1<<endl;
    else cout<<DP[M].back()<<endl;
    return 0;
}
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