#997968 (C++17) No.2824 Lights Up! (Grid Edition)

提出ソース

結果

問題	No.2824 Lights Up! (Grid Edition)
ユーザー	👑 tute7627
提出日時	2024-07-26 23:44:14
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	200 ms / 2,000 ms
コード長	11,551 bytes
コンパイル時間	3,124 ms
コンパイル使用メモリ	229,692 KB
実行使用メモリ	24,652 KB
最終ジャッジ日時	2024-07-26 23:44:25
合計ジャッジ時間	10,968 ms
ジャッジサーバーID （参考情報）	judge4 / judge2

このコードへのチャレンジ
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テストケース

テストケース表示

入力	結果	実行時間実行使用メモリ
testcase_00	AC	2 ms 5,248 KB
testcase_01	AC	1 ms 5,376 KB
testcase_02	AC	2 ms 5,376 KB
testcase_03	AC	2 ms 5,376 KB
testcase_04	AC	30 ms 16,128 KB
testcase_05	AC	33 ms 16,128 KB
testcase_06	AC	30 ms 16,128 KB
testcase_07	AC	183 ms 24,548 KB
testcase_08	AC	29 ms 16,000 KB
testcase_09	AC	33 ms 16,128 KB
testcase_10	AC	30 ms 16,128 KB
testcase_11	AC	200 ms 24,552 KB
testcase_12	AC	28 ms 16,128 KB
testcase_13	AC	182 ms 24,524 KB
testcase_14	AC	30 ms 16,128 KB
testcase_15	AC	145 ms 24,520 KB
testcase_16	AC	31 ms 16,128 KB
testcase_17	AC	199 ms 24,516 KB
testcase_18	AC	31 ms 16,128 KB
testcase_19	AC	142 ms 24,652 KB
testcase_20	AC	11 ms 7,424 KB
testcase_21	AC	22 ms 12,032 KB
testcase_22	AC	3 ms 5,376 KB
testcase_23	AC	145 ms 22,160 KB
testcase_24	AC	3 ms 5,376 KB
testcase_25	AC	8 ms 5,376 KB
testcase_26	AC	11 ms 7,808 KB
testcase_27	AC	135 ms 23,848 KB
testcase_28	AC	2 ms 5,376 KB
testcase_29	AC	17 ms 5,524 KB
testcase_30	AC	4 ms 5,376 KB
testcase_31	AC	2 ms 5,376 KB
testcase_32	AC	4 ms 5,376 KB
testcase_33	AC	2 ms 5,376 KB
testcase_34	AC	2 ms 5,376 KB
testcase_35	AC	2 ms 5,376 KB
testcase_36	AC	2 ms 5,376 KB
testcase_37	AC	2 ms 5,376 KB
testcase_38	AC	2 ms 5,376 KB
testcase_39	AC	2 ms 5,376 KB
testcase_40	AC	2 ms 5,376 KB
testcase_41	AC	2 ms 5,376 KB
testcase_42	AC	2 ms 5,376 KB
testcase_43	AC	2 ms 5,376 KB
testcase_44	AC	2 ms 5,376 KB
testcase_45	AC	2 ms 5,376 KB
testcase_46	AC	2 ms 5,376 KB
testcase_47	AC	2 ms 5,376 KB
testcase_48	AC	2 ms 5,376 KB
testcase_49	AC	2 ms 5,376 KB
testcase_50	AC	2 ms 5,376 KB
testcase_51	AC	3 ms 5,376 KB
testcase_52	AC	2 ms 5,376 KB
testcase_53	AC	2 ms 5,376 KB
testcase_54	AC	2 ms 5,376 KB
testcase_55	AC	2 ms 5,376 KB
testcase_56	AC	2 ms 5,376 KB
testcase_57	AC	2 ms 5,376 KB
testcase_58	AC	2 ms 5,376 KB
testcase_59	AC	2 ms 5,376 KB
testcase_60	AC	2 ms 5,376 KB
testcase_61	AC	2 ms 5,376 KB
testcase_62	AC	2 ms 5,376 KB
testcase_63	AC	2 ms 5,376 KB
testcase_64	AC	1 ms 5,376 KB
testcase_65	AC	2 ms 5,376 KB
testcase_66	AC	1 ms 5,376 KB
testcase_67	AC	2 ms 5,376 KB
testcase_68	AC	2 ms 5,376 KB
testcase_69	AC	2 ms 5,376 KB
testcase_70	AC	2 ms 5,376 KB
testcase_71	AC	2 ms 5,376 KB
testcase_72	AC	1 ms 5,376 KB
testcase_73	AC	2 ms 5,376 KB
testcase_74	AC	2 ms 5,376 KB
testcase_75	AC	2 ms 5,376 KB
testcase_76	AC	2 ms 5,376 KB
testcase_77	AC	2 ms 5,376 KB
testcase_78	AC	2 ms 5,376 KB
testcase_79	AC	2 ms 5,376 KB
testcase_80	AC	2 ms 5,376 KB
testcase_81	AC	1 ms 5,376 KB
testcase_82	AC	2 ms 5,376 KB
testcase_83	AC	2 ms 5,376 KB
testcase_84	AC	1 ms 5,376 KB
testcase_85	AC	1 ms 5,376 KB
testcase_86	AC	2 ms 5,376 KB
testcase_87	AC	2 ms 5,376 KB
testcase_88	AC	2 ms 5,376 KB
testcase_89	AC	2 ms 5,376 KB
testcase_90	AC	2 ms 5,376 KB
testcase_91	AC	1 ms 5,376 KB
testcase_92	AC	2 ms 5,376 KB
testcase_93	AC	1 ms 5,376 KB
testcase_94	AC	2 ms 5,376 KB
testcase_95	AC	2 ms 5,376 KB
testcase_96	AC	2 ms 5,376 KB
testcase_97	AC	2 ms 5,376 KB
testcase_98	AC	2 ms 5,376 KB
testcase_99	AC	1 ms 5,376 KB
testcase_100	AC	2 ms 5,376 KB
testcase_101	AC	2 ms 5,376 KB
testcase_102	AC	2 ms 5,376 KB
testcase_103	AC	2 ms 5,376 KB

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ソースコード

raw source code

//#define _GLIBCXX_DEBUG

//#pragma GCC target("avx2")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")

#include<bits/stdc++.h>
using namespace std;


#ifdef LOCAL
#include <debug_print.hpp>
#define OUT(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#define OUT(...) (static_cast<void>(0))
#endif

#define endl '\n'
#define lfs cout<<fixed<<setprecision(15)
#define ALL(a)  (a).begin(),(a).end()
#define ALLR(a)  (a).rbegin(),(a).rend()
#define UNIQUE(a) (a).erase(unique((a).begin(),(a).end()),(a).end())
#define spa << " " <<
#define fi first
#define se second
#define MP make_pair
#define MT make_tuple
#define PB push_back
#define EB emplace_back
#define rep(i,n,m) for(ll i = (n); i < (ll)(m); i++)
#define rrep(i,n,m) for(ll i = (ll)(m) - 1; i >= (ll)(n); i--)

namespace template_tute{
  using ll = long long;
  using ld = long double;
  const ll MOD1 = 1e9+7;
  const ll MOD9 = 998244353;
  const ll INF = 1e18;
  using P = pair<ll, ll>;
  template<typename T> using PQ = priority_queue<T>;
  template<typename T> using QP = priority_queue<T,vector<T>,greater<T>>;
  template<typename T1, typename T2>bool chmin(T1 &a,T2 b){if(a>b){a=b;return true;}else return false;}
  template<typename T1, typename T2>bool chmax(T1 &a,T2 b){if(a<b){a=b;return true;}else return false;}
  ll median(ll a,ll b, ll c){return a+b+c-max<ll>({a,b,c})-min<ll>({a,b,c});}
  void ans1(bool x){if(x) cout<<"Yes"<<endl;else cout<<"No"<<endl;}
  void ans2(bool x){if(x) cout<<"YES"<<endl;else cout<<"NO"<<endl;}
  void ans3(bool x){if(x) cout<<"Yay!"<<endl;else cout<<":("<<endl;}
  template<typename T1,typename T2>void ans(bool x,T1 y,T2 z){if(x)cout<<y<<endl;else cout<<z<<endl;}  
  template<typename T1,typename T2,typename T3>void anss(T1 x,T2 y,T3 z){ans(x!=y,x,z);};  
  template<typename T>void debug(const T &v,ll h,ll w,string sv=" "){for(ll i=0;i<h;i++){cout<<v[i][0];for(ll j=1;j<w;j++)cout<<sv<<v[i][j];cout<<endl;}};
  template<typename T>void debug(const T &v,ll n,string sv=" "){if(n!=0)cout<<v[0];for(ll i=1;i<n;i++)cout<<sv<<v[i];cout<<endl;};
  template<typename T>void debug(const vector<T>&v){debug(v,v.size());}
  template<typename T>void debug(const vector<vector<T>>&v){for(auto &vv:v)debug(vv,vv.size());}
  template<typename T>void debug(stack<T> st){while(!st.empty()){cout<<st.top()<<" ";st.pop();}cout<<endl;}
  template<typename T>void debug(queue<T> st){while(!st.empty()){cout<<st.front()<<" ";st.pop();}cout<<endl;}
  template<typename T>void debug(deque<T> st){while(!st.empty()){cout<<st.front()<<" ";st.pop_front();}cout<<endl;}
  template<typename T>void debug(PQ<T> st){while(!st.empty()){cout<<st.top()<<" ";st.pop();}cout<<endl;}
  template<typename T>void debug(QP<T> st){while(!st.empty()){cout<<st.top()<<" ";st.pop();}cout<<endl;}
  template<typename T>void debug(const set<T>&v){for(auto z:v)cout<<z<<" ";cout<<endl;}
  template<typename T>void debug(const multiset<T>&v){for(auto z:v)cout<<z<<" ";cout<<endl;}
  template<typename T,size_t size>void debug(const array<T, size> &a){for(auto z:a)cout<<z<<" ";cout<<endl;}
  template<typename T,typename V>void debug(const map<T,V>&v){for(auto z:v)cout<<"["<<z.first<<"]="<<z.second<<",";cout<<endl;}
  template<typename T>vector<vector<T>>vec(ll x, ll y, T w){vector<vector<T>>v(x,vector<T>(y,w));return v;}
  vector<ll>dx={1,-1,0,0,1,1,-1,-1};vector<ll>dy={0,0,1,-1,1,-1,1,-1};
  template<typename T>vector<T> make_v(size_t a,T b){return vector<T>(a,b);}
  template<typename... Ts>auto make_v(size_t a,Ts... ts){return vector<decltype(make_v(ts...))>(a,make_v(ts...));}
  template<typename T1, typename T2>ostream &operator<<(ostream &os, const pair<T1, T2>&p){return os << "(" << p.first << "," << p.second << ")";}
  template<typename T>ostream &operator<<(ostream &os, const vector<T> &v){os<<"[";for(auto &z:v)os << z << ",";os<<"]"; return os;}
  template<typename T>void rearrange(vector<int>&ord, vector<T>&v){
    auto tmp = v;
    for(int i=0;i<tmp.size();i++)v[i] = tmp[ord[i]];
  }
  template<typename Head, typename... Tail>void rearrange(vector<int>&ord,Head&& head, Tail&&... tail){
    rearrange(ord, head);
    rearrange(ord, tail...);
  }
  template<typename T> vector<int> ascend(const vector<T>&v){
    vector<int>ord(v.size());iota(ord.begin(),ord.end(),0);
    sort(ord.begin(),ord.end(),[&](int i,int j){return make_pair(v[i],i)<make_pair(v[j],j);});
    return ord;
  }
  template<typename T> vector<int> descend(const vector<T>&v){
    vector<int>ord(v.size());iota(ord.begin(),ord.end(),0);
    sort(ord.begin(),ord.end(),[&](int i,int j){return make_pair(v[i],-i)>make_pair(v[j],-j);});
    return ord;
  }
  template<typename T> vector<T> inv_perm(const vector<T>&ord){
    vector<T>inv(ord.size());
    for(int i=0;i<ord.size();i++)inv[ord[i]] = i;
    return inv;
  }
  ll FLOOR(ll n,ll div){assert(div>0);return n>=0?n/div:(n-div+1)/div;}
  ll CEIL(ll n,ll div){assert(div>0);return n>=0?(n+div-1)/div:n/div;}
  ll digitsum(ll n){ll ret=0;while(n){ret+=n%10;n/=10;}return ret;}
  ll modulo(ll n,ll d){return (n%d+d)%d;};
  template<typename T>T min(const vector<T>&v){return *min_element(v.begin(),v.end());}
  template<typename T>T max(const vector<T>&v){return *max_element(v.begin(),v.end());}
  template<typename T>T acc(const vector<T>&v){return accumulate(v.begin(),v.end(),T(0));};
  template<typename T>T reverse(const T &v){return T(v.rbegin(),v.rend());};
  //mt19937 mt(chrono::steady_clock::now().time_since_epoch().count());
  int popcount(ll x){return __builtin_popcountll(x);};
  int poplow(ll x){return __builtin_ctzll(x);};
  int pophigh(ll x){return 63 - __builtin_clzll(x);};
  template<typename T>T poll(queue<T> &q){auto ret=q.front();q.pop();return ret;};
  template<typename T>T poll(priority_queue<T> &q){auto ret=q.top();q.pop();return ret;};
  template<typename T>T poll(QP<T> &q){auto ret=q.top();q.pop();return ret;};
  template<typename T>T poll(stack<T> &s){auto ret=s.top();s.pop();return ret;};
  ll MULT(ll x,ll y){if(LLONG_MAX/x<=y)return LLONG_MAX;return x*y;}
  ll POW2(ll x, ll k){ll ret=1,mul=x;while(k){if(mul==LLONG_MAX)return LLONG_MAX;if(k&1)ret=MULT(ret,mul);mul=MULT(mul,mul);k>>=1;}return ret;}
  ll POW(ll x, ll k){ll ret=1;for(int i=0;i<k;i++){if(LLONG_MAX/x<=ret)return LLONG_MAX;ret*=x;}return ret;}
  std::ostream &operator<<(std::ostream &dest, __int128_t value) {
    std::ostream::sentry s(dest);
    if (s) {
      __uint128_t tmp = value < 0 ? -value : value;
      char buffer[128];
      char *d = std::end(buffer);
      do {
        --d;
        *d = "0123456789"[tmp % 10];
        tmp /= 10;
      } while (tmp != 0);
      if (value < 0) {
        --d;
        *d = '-';
      }
      int len = std::end(buffer) - d;
      if (dest.rdbuf()->sputn(d, len) != len) {
        dest.setstate(std::ios_base::badbit);
      }
    }
    return dest;
  }
  namespace converter{
    int dict[500];
    const string lower="abcdefghijklmnopqrstuvwxyz";
    const string upper="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    const string digit="0123456789";
    const string digit1="123456789";
    void regi_str(const string &t){
      for(int i=0;i<t.size();i++){
        dict[t[i]]=i;
      }
    }
    void regi_int(const string &t){
      for(int i=0;i<t.size();i++){
        dict[i]=t[i];
      }
    }
    vector<int>to_int(const string &s,const string &t){
      regi_str(t);
      vector<int>ret(s.size());
      for(int i=0;i<s.size();i++){
        ret[i]=dict[s[i]];
      }
      return ret;
    }
    vector<int>to_int(const string &s){
      auto t=s;
      sort(t.begin(),t.end());
      t.erase(unique(t.begin(),t.end()),t.end());
      return to_int(s,t);
    }
    
    vector<vector<int>>to_int(const vector<string>&s,const string &t){
      regi_str(t);
      vector<vector<int>>ret(s.size(),vector<int>(s[0].size()));
      for(int i=0;i<s.size();i++){
        for(int j=0;j<s[0].size();j++){
          ret[i][j]=dict[s[i][j]];
        }
      }
      return ret;
    }
    vector<vector<int>>to_int(const vector<string>&s){
      string t;
      for(int i=0;i<s.size();i++){
        t+=s[i];
      }
      sort(t.begin(),t.end());t.erase(unique(t.begin(),t.end()),t.end());
      return to_int(s,t);
    }
    string to_str(const vector<int>&s,const string &t){
      regi_int(t);
      string ret;
      for(auto z:s)ret+=dict[z];
      return ret;
    }
    vector<string> to_str(const vector<vector<int>>&s,const string &t){
      regi_int(t);
      vector<string>ret(s.size());
      for(int i=0;i<s.size();i++){
        for(auto z:s[i])ret[i]+=dict[z];
      }
      return ret;
    }
  }
  template< typename T = int >
  struct edge {
    int to;
    T cost;
    int id;
    edge():to(-1),id(-1){};
    edge(int to, T cost = 1, int id = -1):to(to), cost(cost), id(id){}
    operator int() const { return to; }
  };

  template<typename T>
  using Graph = vector<vector<edge<T>>>;
  template<typename T>
  Graph<T>revgraph(const Graph<T> &g){
    Graph<T>ret(g.size());
    for(int i=0;i<g.size();i++){
      for(auto e:g[i]){
        int to = e.to;
        e.to = i;
        ret[to].push_back(e);
      }
    }
    return ret;
  }
  template<typename T>
  Graph<T> readGraph(int n,int m,int indexed=1,bool directed=false,bool weighted=false){
    Graph<T> ret(n);
    for(int es = 0; es < m; es++){
      int u,v;
      T w=1;
      cin>>u>>v;u-=indexed,v-=indexed;
      if(weighted)cin>>w;
      ret[u].emplace_back(v,w,es);
      if(!directed)ret[v].emplace_back(u,w,es);
    }
    return ret;
  }
  template<typename T>
  Graph<T> readParent(int n,int indexed=1,bool directed=true){
    Graph<T>ret(n);
    for(int i=1;i<n;i++){
      int p;cin>>p;
      p-=indexed;
      ret[p].emplace_back(i);
      if(!directed)ret[i].emplace_back(p);
    }
    return ret;
  }
}
using namespace template_tute;

void solve(){
	ll res=0,buf=0;
  bool judge = true;

  ll n;cin>>n;
  vector<string>_s(n);
  rep(i,0,n)cin>>_s[i];
  auto s=vec(n,n,0);
  auto ns=vec(n,n,0);
  rep(i,0,n){
    auto ss=converter::to_int(_s[i],".#");
    ns[i]=ss;
    rep(j,0,n){
      s[(i+1)%n][(j+1)%n]=ss[j];
    }
  }
  auto t=vec(n,n,0);
  rep(i,0,n-1)rep(j,0,n-1){
    if(s[i][j]){
      rep(x,0,2)rep(y,0,2){
        s[i+x][j+y]^=1;
      }
      t[i][j]^=1;
    }
  }
  bool ok=true;
  rep(i,0,n)rep(j,0,n)if(s[i][j])ok=false;
  if(!ok){
    cout<<-1<<endl;
    return;
  }
  vector<int>odd;
  rep(j,1,n){
    int parity=0;
    rep(i,0,n)parity^=t[i][j];
    if(parity&&n%2==1){
      odd.PB(j);
    }
    else if(parity)ok=false;
  }
  if(odd.size()&1){
    if(n%2==1){
      rep(i,0,n){
        t[i][odd[0]]^=1;
      }
    }
  }
  rep(i,1,n){
    int parity=0;
    rep(j,0,n)parity^=t[i][j];
    if(parity&&n%2==1){
      rep(j,0,n)t[i][j]^=1;
    }
    else if(parity)ok=false;
  }
  rep(j,1,n){
    int parity=0;
    rep(i,0,n)parity^=t[i][j];
    if(parity&&n%2==1){
      rep(i,0,n)t[i][j]^=1;
    }
    else if(parity)ok=false;
  }
  if(!ok){
    cout<<-1<<endl;
    return;
  }
  vector<P>ret;
  rep(i,1,n)rep(j,1,n){
    if(t[i][j]){
      ret.PB({i,j});
    }
  }
  if(t[0][0])ret.EB(0,0);
  cout<<ret.size()<<endl;
  for(auto z:ret){
    cout<<z.fi<<" "<<z.se<<endl;
    for(auto [r,c]:vector<P>{z,MP(z.fi,0),MP(0,z.se)}){
      rep(x,-1,1)rep(y,-1,1){
        ns[(r+x+n)%n][(c+y+n)%n]^=1;
      }
    }
  }
  rep(i,0,n){
    rep(j,0,n){
      assert(ns[i][j]==0);
    }
  }
}

int main(){
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);
  ll res=0,buf=0;
  bool judge = true;
  int T = 1;
  //cin>>T;
  while(T--){
    solve();
  }
  return 0;
}

yukicoder

結果

テストケース

ソースコード