結果
| 問題 |
No.2675 KUMA
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-03-20 01:19:35 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 4,017 bytes |
| コンパイル時間 | 4,230 ms |
| コンパイル使用メモリ | 254,924 KB |
| 最終ジャッジ日時 | 2025-02-20 07:56:21 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 17 WA * 28 RE * 2 |
ソースコード
#include <bits/stdc++.h>
#include <atcoder/all>
#define SELECTER(_1,_2,_3,SELECT,...) SELECT
#define rep1(i,n) for(int i=0;i<(int)n;++i)
#define rep2(i,a,n) for(int i=(int)a;i<(int)n;++i)
#define rep(...) SELECTER(__VA_ARGS__,rep2,rep1)(__VA_ARGS__)
#define RSELECTER(_1, _2, _3, RSELECT, ...) RSELECT
#define rrep1(i,n) for(int i=(int)(n)-1;i>=0;--i)
#define rrep2(i,a,n) for(int i=(int)(n)-1;i>=(int)a;--i)
#define rrep(...) RSELECTER(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__)
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define fi first
#define se second
#define PrintR LogOutput
#ifdef _DEBUG
#define Log(...) LogOutput(__VA_ARGS__)
#else
#define Log(...)
#endif
#define M_PI 3.14159265358979323846
using namespace std;
using namespace atcoder;
using ll=long long;
using ld=long double;
using pii=pair<int,int>;
using pll=pair<long long,long long>;
using pdd=pair<long double,long double>;
using tp=tuple<int,int,int>;
using tpll=tuple<ll,ll,ll>;
using veci=vector<int>;
using vecpii=vector<pair<int,int>>;
using vecll=vector<long long>;
using vecpll=vector<pair<long long,long long>>;
using vecpdd=vector<pair<long double,long double>>;
using vecs=vector<string>;
using vecb=vector<bool>;
using vecd=vector<long double>;
using vectp=vector<tp>;
using vectpll=vector<tpll>;
using mint=modint998244353;
using mint10=modint1000000007;
template<typename T, typename S>
istream& operator>>(istream& in, pair<T, S>& a){return in >> a.first >> a.second;}
template<typename T, typename S>
ostream& operator<<(ostream& out, const pair<T, S>& a){return out << a.first << ' ' << a.second;}
ostream& operator<<(ostream& out, const mint& a){return out << a.val();}
ostream& operator<<(ostream& out, const mint10& a){return out << a.val();}
ostream& operator<<(ostream& out, const modint& a){return out << a.val();}
template<typename T>
ostream& operator<<(ostream& out, const vector<T>& d){for(int i = 0 ; i < d.size() ; ++i) out << d[i] << (i == d.size() - 1 ? "" : " "); return out;}
template<typename T, typename S>
pair<T, S> operator+(const pair<T, S>& a, const pair<T, S>& b){return {a.fi + b.fi, a.se + b.se};}
template<typename T, typename S>
pair<T, S> operator-(const pair<T, S>& a, const pair<T, S>& b){return {a.fi - b.fi, a.se - b.se};}
template<class T> inline bool chmax(T& a,T b){if(a<b) {a=b;return true;} return false;}
template<class T> inline bool chmin(T& a,T b){if(a>b) {a=b;return true;} return false;}
bool Judge(int i, int j, int h, int w){return i < 0 || j < 0 || i >= h || j >= w;}
bool PrintA(int i){cout<<(i ? "Yes" : "No")<<endl;return i;}
constexpr ll INF=numeric_limits<ll>::max() >> 2;
constexpr int inf=numeric_limits<int>::max() >> 1;
constexpr ll MOD=998244353;
const int vi[] = {0, 1, 0, -1}, vj[] = {1, 0, -1, 0};
template<typename... Args>
void LogOutput(Args&&... args){
stringstream ss;
((ss << args << ' '), ...);
cout << ss.str().substr(0, ss.str().length() - 1) << endl;
}
template<typename T>
void LogOutput(vector<vector<T>>& data){for(auto d : data) LogOutput(d);}
int main(){
ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int n;cin>>n;
vecpii a(n);
rep(i, n) cin>>a[i];
veci dp(1 << n, inf);
const int N = 2010, base = 1010;
vector cnt(N, veci(N));
vector b(N, veci(N));
rep(i, n) b[base + a[i].fi][base + a[i].se] = 1;
vecpii t;
int di[] = {2, 2, -2, -2, -1, 1, -1, 1}, dj[] = {-1, 1, -1, 1, -2, -2, 2, 2};
rep(i, 1 << n){
rep(j, n) if(i >> j & 1){
rep(k, 8){
if(b[base + a[j].fi + di[k]][base + a[j].se + dj[k]]) continue;
cnt[base + a[j].fi + di[k]][base + a[j].se + dj[k]]++;
t.emplace_back(base + a[j].fi + di[k], base + a[j].se + dj[k]);
}
}
int u = 0, c = __builtin_popcount(i);
while(t.size()){
u |= cnt[t.back().fi][t.back().se] == c;
cnt[t.back().fi][t.back().se] = 0;
t.pop_back();
}
if(u) dp[i] = 1;
}
rep(i, 1 << n) for(int j = i; j > 0; j = (j - 1) & i)
chmin(dp[i], dp[j] + dp[i - j]);
if(dp[(1 << n) - 1] == inf) dp[(1 << n) - 1] = -1;
cout<<dp[(1 << n) - 1]<<endl;
}