結果
問題 | No.2428 Returning Shuffle |
ユーザー |
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提出日時 | 2023-08-18 23:46:04 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 377 ms / 2,000 ms |
コード長 | 5,269 bytes |
コンパイル時間 | 4,804 ms |
コンパイル使用メモリ | 264,492 KB |
最終ジャッジ日時 | 2025-02-16 11:01:42 |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 23 |
ソースコード
#include<bits/stdc++.h>#include <math.h>#include <algorithm>#include <iostream>#include <vector>#include <atcoder/all>#include <atcoder/dsu>#include <atcoder/segtree>#include <atcoder/lazysegtree>#include <atcoder/modint>#include <atcoder/scc>#include <chrono>#include <random>#include <cassert>#ifndef templete#define rep(i,a,b) for(int i=a;i<b;i++)#define rrep(i,a,b) for(int i=a;i>=b;i--)#define fore(i,a) for(auto &i:a)#define all(x) (x).begin(),(x).end()//#include<boost/multiprecision/cpp_int.hpp>//using namespace boost::multiprecision;using namespace std;using namespace atcoder;//using atmint = modint998244353;using atmint = modint;using Graph = vector<vector<int>>;using P = pair<long long,long long>;//#pragma GCC optimize ("-O3")using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }//---------------------------------------------------------------------------------------------------template<int MOD> struct ModInt {static const int Mod = MOD; unsigned x; ModInt() : x(0) { }ModInt(signed sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }ModInt(signed long long sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }int get() const { return (int)x; }ModInt &operator+=(ModInt that) { if ((x += that.x) >= MOD) x -= MOD; return *this; }ModInt &operator-=(ModInt that) { if ((x += MOD - that.x) >= MOD) x -= MOD; return *this; }ModInt &operator*=(ModInt that) { x = (unsigned long long)x * that.x % MOD; return *this; }ModInt &operator/=(ModInt that) { return *this *= that.inverse(); }ModInt operator+(ModInt that) const { return ModInt(*this) += that; }ModInt operator-(ModInt that) const { return ModInt(*this) -= that; }ModInt operator*(ModInt that) const { return ModInt(*this) *= that; }ModInt operator/(ModInt that) const { return ModInt(*this) /= that; }ModInt inverse() const { long long a = x, b = MOD, u = 1, v = 0;while (b) { long long t = a / b; a -= t * b; std::swap(a, b); u -= t * v; std::swap(u, v); }return ModInt(u); }bool operator==(ModInt that) const { return x == that.x; }bool operator!=(ModInt that) const { return x != that.x; }ModInt operator-() const { ModInt t; t.x = x == 0 ? 0 : Mod - x; return t; }};template<int MOD> ostream& operator<<(ostream& st, const ModInt<MOD> a) { st << a.get(); return st; };template<int MOD> ModInt<MOD> operator^(ModInt<MOD> a, unsigned long long k) {ModInt<MOD> r = 1; while (k) { if (k & 1) r *= a; a *= a; k >>= 1; } return r; }template<typename T, int FAC_MAX> struct Comb { vector<T> fac, ifac;Comb(){fac.resize(FAC_MAX,1);ifac.resize(FAC_MAX,1);rep(i,1,FAC_MAX)fac[i]=fac[i-1]*i;ifac[FAC_MAX-1]=T(1)/fac[FAC_MAX-1];rrep(i,FAC_MAX-2,1)ifac[i]=ifac[i+1]*T(i+1);}T aPb(int a, int b) { if (b < 0 || a < b) return T(0); return fac[a] * ifac[a - b]; }T aCb(int a, int b) { if (b < 0 || a < b) return T(0); return fac[a] * ifac[a - b] * ifac[b]; }T nHk(int n, int k) { if (n == 0 && k == 0) return T(1); if (n <= 0 || k < 0) return 0;return aCb(n + k - 1, k); } // nHk = (n+k-1)Ck : n is separatorT pairCombination(int n) {if(n%2==1)return T(0);return fac[n]*ifac[n/2]/(T(2)^(n/2));}// combination of paris for n com.aCb(h+w-2,h-1);};//typedef ModInt<1000000007> mint;typedef ModInt<998244353> mint;//typedef ModInt<1000000000> mint;Comb<mint, 2010101> com;//vector dp(n+1,vector(n+1,vector<ll>(n+1,0)));//vector dp(n+1,vector<ll>(n+1,0));std::random_device seed_gen;std::mt19937 engine(seed_gen());string ye = "Yes"; string no = "No"; string draw = "Draw";#endif // templete//---------------------------------------------------------------------------------------------------void _main() {ll n,m;cin >> n >> m;vector<ll>p(n);rep(i,0,n)p[i] = i;rep(mi,0,m){ll t;cin >> t;vector<ll>s(t);rep(i,0,t){cin >> s[i];s[i]--;}vector<ll>v(t);rep(i,0,t){v[i] = p[s[i]];}rep(i,0,t)p[s[(i+1)%t]] = v[i];}dsu d(n);rep(i,0,n){d.merge(i,p[i]);// cout << p[i] << " ";}mint ans = 1;// rep(i,0,n)cout << p[i] + 1 << " ";// cout << endl;//素因数分解とエラトステネスの篩//e[2] = 0 e[6] = 2ll maxe = 1000005;vector<ll>e(maxe,0);vector<ll>cnt(maxe,0);rep(i,2,maxe){if(e[i])continue;ll num = i + i;while(num < maxe){if(e[num] == 0)e[num] = i;else chmin(e[num],ll(i));num += i;}}rep(i,0,n){if(d.leader(i) == i){map<ll,ll>mp;int val = d.size(i);// cerr << val << endl;while(val != 1 && e[val] != 0){mp[e[val]]++;val /= e[val];}if(val >= 2)mp[val]++;for(auto pa:mp){chmax(cnt[pa.first],pa.second);}}}rep(i,0,maxe)if(cnt[i])rep(j,0,cnt[i])ans *= i;cout << ans << endl;}