結果
問題 | No.2733 Just K-times TSP |
ユーザー |
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提出日時 | 2024-04-19 21:56:04 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 953 ms / 2,000 ms |
コード長 | 3,102 bytes |
コンパイル時間 | 5,297 ms |
コンパイル使用メモリ | 316,520 KB |
実行使用メモリ | 17,664 KB |
最終ジャッジ日時 | 2024-10-11 14:57:44 |
合計ジャッジ時間 | 9,992 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 32 |
ソースコード
#include <bits/stdc++.h>using namespace std;#if __has_include(<atcoder/all>)#include <atcoder/all>using namespace atcoder;template<int mod>istream &operator>>(istream &is,static_modint<mod> &a){long long b;is>>b;a=b;return is;}istream &operator>>(istream &is,modint &a){long long b;cin>>b;a=b;return is;}#endif#ifdef LOCAL#include "debug.h"#else#define debug(...) static_cast<void>(0)#define debugg(...) static_cast<void>(0)#define esper(...) static_cast<void>(0)template<typename T1,typename T2>ostream &operator<<(ostream &os,const pair<T1,T2>&p){os<<p.first<<' '<<p.second;return os;}#endifusing ll=long long;using ull=unsigned long long;using P=pair<ll,ll>;template<typename T>using minque=priority_queue<T,vector<T>,greater<T>>;template<typename T>bool chmax(T &a,const T &b){return (a<b?(a=b,true):false);}template<typename T>bool chmin(T &a,const T &b){return (a>b?(a=b,true):false);}template<typename T1,typename T2>istream &operator>>(istream &is,pair<T1,T2>&p){is>>p.first>>p.second;return is;}template<typename T>istream &operator>>(istream &is,vector<T> &a){for(auto &i:a)is>>i;return is;}template<typename T1,typename T2>void operator++(pair<T1,T2>&a,int n){a.first++,a.second++;}template<typename T1,typename T2>void operator--(pair<T1,T2>&a,int n){a.first--,a.second--;}template<typename T>void operator++(vector<T>&a,int n){for(auto &i:a)i++;}template<typename T>void operator--(vector<T>&a,int n){for(auto &i:a)i--;}#define reps(i,a,n) for(int i=(a);i<(n);i++)#define rep(i,n) reps(i,0,n)#define all(x) x.begin(),x.end()#define pcnt(x) __builtin_popcountll(x)#define fin(x) return cout<<x<<'\n',static_cast<void>(0)ll myceil(ll a,ll b){return (a+b-1)/b;}template<typename T,size_t n,size_t id=0>auto vec(const int (&d)[n],const T &init=T()){if constexpr (id<n)return vector(d[id],vec<T,n,id+1>(d,init));else return init;}void SOLVE();int main(){ios::sync_with_stdio(false);cin.tie(nullptr);cout<<fixed<<setprecision(16);#ifdef LOCALclock_t start=clock();#endifint testcase=1;//cin>>testcase;for(int i=0;i<testcase;i++){SOLVE();}#ifdef LOCALcerr<<"time:";cerr<<(clock()-start)/1000;cerr<<"ms\n";#endif}using mint=modint998244353;void SOLVE(){int n,m,k;cin>>n>>m>>k;vector<vector<int>>to(n);rep(i,m){int u,v;cin>>u>>v;u--,v--;to[u].push_back(v);to[v].push_back(u);}auto get=[&](vector<int>a)->int {int ret=0;rep(i,n){ret*=k+1;ret+=a[i];}return ret;};auto getinv=[&](int id)->vector<int> {vector<int>ret;rep(i,n){ret.push_back(id%(k+1));id/=k+1;}reverse(all(ret));return ret;};vector<vector<mint>>dp(n,vector<mint>(get(vector<int>(n,k))+1,0));rep(i,n){vector<int>now(n,0);now[i]++;dp[i][get(now)]=1;}rep(i,dp[0].size())rep(j,n){vector<int>now=getinv(i);for(auto l:to[j])if(now[l]!=k){now[l]++;dp[l][get(now)]+=dp[j][i];now[l]--;}}mint ans=0;rep(i,n)ans+=dp[i].back();cout<<ans.val()<<endl;}