結果
問題 | No.578 3 x N グリッド上のサイクルのサイズ(easy) |
ユーザー | fumofumofuni |
提出日時 | 2022-08-28 19:13:42 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 97 ms / 2,000 ms |
コード長 | 9,063 bytes |
コンパイル時間 | 3,591 ms |
コンパイル使用メモリ | 247,592 KB |
実行使用メモリ | 6,656 KB |
最終ジャッジ日時 | 2024-10-15 16:41:57 |
合計ジャッジ時間 | 6,341 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 5 ms
6,528 KB |
testcase_01 | AC | 6 ms
6,400 KB |
testcase_02 | AC | 5 ms
6,400 KB |
testcase_03 | AC | 6 ms
6,528 KB |
testcase_04 | AC | 6 ms
6,272 KB |
testcase_05 | AC | 6 ms
6,528 KB |
testcase_06 | AC | 7 ms
6,400 KB |
testcase_07 | AC | 9 ms
6,528 KB |
testcase_08 | AC | 9 ms
6,400 KB |
testcase_09 | AC | 10 ms
6,400 KB |
testcase_10 | AC | 10 ms
6,528 KB |
testcase_11 | AC | 10 ms
6,400 KB |
testcase_12 | AC | 11 ms
6,400 KB |
testcase_13 | AC | 12 ms
6,528 KB |
testcase_14 | AC | 14 ms
6,528 KB |
testcase_15 | AC | 16 ms
6,400 KB |
testcase_16 | AC | 15 ms
6,272 KB |
testcase_17 | AC | 17 ms
6,528 KB |
testcase_18 | AC | 19 ms
6,272 KB |
testcase_19 | AC | 21 ms
6,400 KB |
testcase_20 | AC | 22 ms
6,400 KB |
testcase_21 | AC | 23 ms
6,528 KB |
testcase_22 | AC | 25 ms
6,528 KB |
testcase_23 | AC | 27 ms
6,528 KB |
testcase_24 | AC | 29 ms
6,272 KB |
testcase_25 | AC | 29 ms
6,528 KB |
testcase_26 | AC | 32 ms
6,400 KB |
testcase_27 | AC | 33 ms
6,272 KB |
testcase_28 | AC | 38 ms
6,400 KB |
testcase_29 | AC | 38 ms
6,528 KB |
testcase_30 | AC | 41 ms
6,400 KB |
testcase_31 | AC | 46 ms
6,528 KB |
testcase_32 | AC | 48 ms
6,400 KB |
testcase_33 | AC | 51 ms
6,528 KB |
testcase_34 | AC | 53 ms
6,400 KB |
testcase_35 | AC | 52 ms
6,528 KB |
testcase_36 | AC | 55 ms
6,400 KB |
testcase_37 | AC | 58 ms
6,656 KB |
testcase_38 | AC | 60 ms
6,528 KB |
testcase_39 | AC | 63 ms
6,656 KB |
testcase_40 | AC | 68 ms
6,656 KB |
testcase_41 | AC | 71 ms
6,656 KB |
testcase_42 | AC | 73 ms
6,400 KB |
testcase_43 | AC | 77 ms
6,656 KB |
testcase_44 | AC | 79 ms
6,656 KB |
testcase_45 | AC | 86 ms
6,656 KB |
testcase_46 | AC | 97 ms
6,656 KB |
testcase_47 | AC | 94 ms
6,656 KB |
testcase_48 | AC | 92 ms
6,400 KB |
testcase_49 | AC | 96 ms
6,528 KB |
ソースコード
#include<bits/stdc++.h> using namespace std; #define rep(i,n) for(ll i=0;i<n;i++) #define repl(i,l,r) for(ll i=(l);i<(r);i++) #define per(i,n) for(ll i=(n)-1;i>=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define pb push_back #define ins insert #define pqueue(x) priority_queue<x,vector<x>,greater<x>> #define all(x) (x).begin(),(x).end() #define CST(x) cout<<fixed<<setprecision(x) #define vtpl(x,y,z) vector<tuple<x,y,z>> #define rev(x) reverse(x); using ll=long long; using vl=vector<ll>; using vvl=vector<vector<ll>>; using pl=pair<ll,ll>; using vpl=vector<pl>; using vvpl=vector<vpl>; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e18; const ll dy[9]={0,1,0,-1,1,1,-1,-1,0}; const ll dx[9]={1,0,-1,0,1,-1,1,-1,0}; template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } const int mod = MOD; const int max_n = 200005; struct mint { ll x; // typedef long long ll; mint(ll x=0):x((x%mod+mod)%mod){} mint operator-() const { return mint(-x);} mint& operator+=(const mint a) { if ((x += a.x) >= mod) x -= mod; return *this; } mint& operator-=(const mint a) { if ((x += mod-a.x) >= mod) x -= mod; return *this; } mint& operator*=(const mint a) { (x *= a.x) %= mod; return *this;} mint operator+(const mint a) const { return mint(*this) += a;} mint operator-(const mint a) const { return mint(*this) -= a;} mint operator*(const mint a) const { return mint(*this) *= a;} mint pow(ll t) const { if (!t) return 1; mint a = pow(t>>1); a *= a; if (t&1) a *= *this; return a; } bool operator==(const mint &p) const { return x == p.x; } bool operator!=(const mint &p) const { return x != p.x; } // for prime mod mint inv() const { return pow(mod-2);} mint& operator/=(const mint a) { return *this *= a.inv();} mint operator/(const mint a) const { return mint(*this) /= a;} }; istream& operator>>(istream& is, mint& a) { return is >> a.x;} ostream& operator<<(ostream& os, const mint& a) { return os << a.x;} using vm=vector<mint>; using vvm=vector<vm>; struct combination { vector<mint> fact, ifact; combination(int n):fact(n+1),ifact(n+1) { assert(n < mod); fact[0] = 1; for (int i = 1; i <= n; ++i) fact[i] = fact[i-1]*i; ifact[n] = fact[n].inv(); for (int i = n; i >= 1; --i) ifact[i-1] = ifact[i]*i; } mint operator()(int n, int k) { if (k < 0 || k > n) return 0; return fact[n]*ifact[k]*ifact[n-k]; } }comb(max_n); struct UnionFind { vector<int> par; vector<int> edge; UnionFind(int n) : par(n, -1),edge(n, 0) {} int root(int x) { if (par[x] < 0) return x; else return par[x] = root(par[x]); } bool same(int x, int y) { return root(x) == root(y); } bool merge(int x, int y) { x = root(x); y = root(y); if (x == y) { edge[x]++; return false; } if (par[x] > par[y]) swap(x, y); par[x] += par[y]; par[y] = x; edge[x] += edge[y]+1; return true; } int size(int x) { return -par[root(x)]; } }; ll score(ll bit){ if(bit==7||bit==5)return 4; if(__builtin_popcount(bit)==2)return 3; return 2; } ll sc(vl v){ ll bit=0; rep(i,3)if(v[i])bit|=1<<i; return score(bit); } mint solve(ll n){ map<pair<vl,ll>,mint> dp; mint ans=0; rep(_,n+1){ map<pair<vl,ll>,mint> ndp; for(auto [x,ret]:dp){ auto [v,leng]=x; if(v.back()!=2)ans+=ret*(leng+sc(v)); } for(auto [x,rrr]:dp){ auto [v,leng]=x; repl(bit,1,1<<3){ ll cir=0; if(bit==7&&v==(vl){1,0,1})continue;//穴あきの防止 {//自己交差の防止 vl nnn; nnn.push_back(bit>>0&1); nnn.push_back(bit>>1&1); nnn.push_back(min(1LL,v[0])); nnn.push_back(min(1LL,v[1])); if(nnn==(vl){1,0,0,1}||nnn==(vl){0,1,1,0})continue; if(nnn!=(vl){1,1,1,1}&&nnn!=(vl){0,0,0,0})cir++; } { vl nnn; nnn.push_back(bit>>1&1); nnn.push_back(bit>>2&1); nnn.push_back(min(1LL,v[1])); nnn.push_back(min(1LL,v[2])); if(nnn==(vl){1,0,0,1}||nnn==(vl){0,1,1,0})continue; if(nnn!=(vl){1,1,1,1}&&nnn!=(vl){0,0,0,0})cir++; } { vl nnn; nnn.push_back(bit>>0&1); nnn.push_back(min(1LL,v[0])); if(nnn!=(vl){0,0})cir++; } { vl nnn; nnn.push_back(bit>>2&1); nnn.push_back(min(1LL,v[2])); if(nnn!=(vl){0,0})cir++; } UnionFind uf(6); if(v[0]&&v[1])uf.merge(0,1); if(v[1]&&v[2])uf.merge(1,2); if(v[0]&&(bit>>0&1))uf.merge(0,3); if(v[1]&&(bit>>1&1))uf.merge(1,4); if(v[2]&&(bit>>2&1))uf.merge(2,5); if((bit>>0&1)&&(bit>>1&1))uf.merge(3,4); if((bit>>1&1)&&(bit>>2&1))uf.merge(4,5); if(v[0]==v[2]&&v[0])uf.merge(0,2); vl nv={0,0,0}; rep(i,3){ rep(j,3){ if(uf.same(i,j+3))nv[i]=1; } } if(v[0]&&nv[0]==0)continue; if(v[1]&&nv[1]==0)continue; if(v[2]&&nv[2]==0)continue; vl con(3);map<ll,ll> mp;ll now=1; rep(i,3){ if(bit>>i&1){ ll p=uf.root(i+3); if(mp.count(p))con[i]=mp[p]; else{ mp[p]=now;now++; con[i]=mp[p]; } } } ndp[{con,leng+cir}]+=rrr; } } ndp[{{0,0,1},2}]+=1; ndp[{{0,1,1},3}]+=1; ndp[{{1,1,1},4}]+=1; ndp[{{0,1,0},2}]+=1; ndp[{{1,0,0},2}]+=1; ndp[{{1,1,0},3}]+=1; ndp[{{1,0,2},4}]+=1; swap(dp,ndp); } return ans; } vector<mint> BerlekampMassey(const vector<mint> &s) { const int N = (int)s.size(); vector<mint> b, c; b.reserve(N + 1); c.reserve(N + 1); b.push_back(mint(1)); c.push_back(mint(1)); mint y = mint(1); for (int ed = 1; ed <= N; ed++) { int l = int(c.size()), m = int(b.size()); mint x = 0; for (int i = 0; i < l; i++) x += c[i] * s[ed - l + i]; b.emplace_back(mint(0)); m++; if (x == mint(0)) continue; mint freq = x / y; if (l < m) { auto tmp = c; c.insert(begin(c), m - l, mint(0)); for (int i = 0; i < m; i++) c[m - 1 - i] -= freq * b[m - 1 - i]; b = tmp; y = x; } else { for (int i = 0; i < m; i++) c[l - 1 - i] -= freq * b[m - 1 - i]; } } reverse(begin(c), end(c)); return c; } template <typename mint> vector<mint> kitamasa(vector<mint> Q,vector<mint> a) { assert(!Q.empty() && Q[0] != 0); assert((int)a.size() >= int(Q.size()) - 1); vector<mint> P(Q.size()*2-2); for(ll i=0;i<Q.size()-1;i++){ for(ll j=0;j<Q.size();j++){ P[i+j]+=a[i]*Q[j]; } } P.resize(Q.size() - 1); return P; } template<class T> struct bostan_mori { vector<T> p, q; bostan_mori(vector<T> &_p, vector<T> &_q) : p(_p), q(_q) {} void rever(vector<T> &f) const { int d = f.size(); rep(i, d) if (i&1) f[i] = -f[i]; } void even(vector<T> &f) const { int d = (f.size() + 1) >> 1; rep(i, d) f[i] = f[i<<1]; f.resize(d); } void odd(vector<T> &f) const { int d = f.size() >> 1; rep(i, d) f[i] = f[i<<1|1]; f.resize(d); } vector<T> convolution(vector<T> a,vector<T> b) const{ int n=a.size(),m=b.size(); vector<T> c(n+m-1); rep(i,n)rep(j,m)c[i+j]+=a[i]*b[j]; return c; } T operator[] (ll n) const { vector<T> _p(p), _q(q), _q_rev(q); rever(_q_rev); for (; n; n >>= 1) { _p = convolution(move(_p), _q_rev); if (n&1) odd(_p); else even(_p); _q = convolution(move(_q), move(_q_rev)); even(_q); _q_rev = _q; rever(_q_rev); } return _p[0] / _q[0]; } }; //https://nyaannyaan.github.io/library/fps/kitamasa.hpp //https://atcoder.jp/contests/tdpc/submissions/34362182 //線形漸化式のprefixからn項目を復元できる。 bostan_mori<mint> interpolation(vm a){ auto q=BerlekampMassey(a); auto p=kitamasa(q,a); return bostan_mori<mint>(p,q); } int main(){ ll n;cin >> n; cout << solve(n) << endl; }