結果
問題 | No.1751 Fortune Nim |
ユーザー | riano |
提出日時 | 2021-11-19 22:15:27 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 22 ms / 2,000 ms |
コード長 | 5,112 bytes |
コンパイル時間 | 1,733 ms |
コンパイル使用メモリ | 176,444 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-10 09:20:00 |
合計ジャッジ時間 | 3,356 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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
6,812 KB |
testcase_01 | AC | 1 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 16 ms
6,940 KB |
testcase_09 | AC | 15 ms
6,940 KB |
testcase_10 | AC | 13 ms
6,944 KB |
testcase_11 | AC | 20 ms
6,944 KB |
testcase_12 | AC | 13 ms
6,944 KB |
testcase_13 | AC | 21 ms
6,940 KB |
testcase_14 | AC | 15 ms
6,940 KB |
testcase_15 | AC | 15 ms
6,940 KB |
testcase_16 | AC | 16 ms
6,944 KB |
testcase_17 | AC | 14 ms
6,940 KB |
testcase_18 | AC | 20 ms
6,944 KB |
testcase_19 | AC | 15 ms
6,944 KB |
testcase_20 | AC | 21 ms
6,940 KB |
testcase_21 | AC | 16 ms
6,940 KB |
testcase_22 | AC | 22 ms
6,940 KB |
testcase_23 | AC | 18 ms
6,944 KB |
testcase_24 | AC | 21 ms
6,944 KB |
testcase_25 | AC | 21 ms
6,940 KB |
testcase_26 | AC | 22 ms
6,940 KB |
testcase_27 | AC | 21 ms
6,944 KB |
testcase_28 | AC | 21 ms
6,940 KB |
testcase_29 | AC | 22 ms
6,940 KB |
testcase_30 | AC | 21 ms
6,940 KB |
testcase_31 | AC | 21 ms
6,940 KB |
コンパイルメッセージ
main.cpp: In function 'std::vector<std::vector<long long int> > pw_matrix(std::vector<std::vector<long long int> >&, long long int)': main.cpp:148:1: warning: control reaches end of non-void function [-Wreturn-type] 148 | } | ^
ソースコード
#include <bits/stdc++.h> using namespace std; #define ll long long #define rep(i,n) for(int i=0;i<n;i++) #define rrep(i,n) for(int i=n-1;i>=0;i--) #define rrep2(i,n,k) for(int i=n-1;i>=n-k;i--) #define vll(n,i) vector<long long>(n,i) #define v2ll(n,m,i) vector<vector<long long>>(n,vll(m,i)) #define v3ll(n,m,k,i) vector<vector<vector<long long>>>(n,v2ll(m,k,i)) #define v4ll(n,m,k,l,i) vector<vector<vector<vector<long long>>>>(n,v3ll(m,k,l,i)) #define all(v) v.begin(),v.end() #define chmin(k,m) k = min(k,m) #define chmax(k,m) k = max(k,m) #define Pr pair<ll,ll> #define Tp tuple<int,int,int> #define riano_ std::ios::sync_with_stdio(false);std::cin.tie(nullptr) using Graph = vector<vector<int>>; const ll mod = 998244353; template<uint64_t mod> struct modint{ uint64_t val; constexpr modint(const int64_t val_=0) noexcept:val((val_%int64_t(mod)+int64_t(mod))%int64_t(mod)){} constexpr modint operator-() const noexcept{ return modint(*this)=mod-val; } constexpr modint operator+(const modint rhs) const noexcept{ return modint(*this)+=rhs; } constexpr modint operator-(const modint rhs) const noexcept{ return modint(*this)-=rhs; } constexpr modint operator*(const modint rhs) const noexcept{ return modint(*this)*=rhs; } constexpr modint operator/(const modint rhs) const noexcept{ return modint(*this)/=rhs; } constexpr modint &operator+=(const modint rhs) noexcept{ val+=rhs.val; val-=((val>=mod)?mod:0); return (*this); } constexpr modint &operator-=(const modint rhs) noexcept{ val+=((val<rhs.val)?mod:0); val-=rhs.val; return (*this); } constexpr modint &operator*=(const modint rhs) noexcept{ val=val*rhs.val%mod; return (*this); } constexpr modint &operator/=(modint rhs) noexcept{ uint64_t ex=mod-2; modint now=1; while(ex){ now*=((ex&1)?rhs:1); rhs*=rhs,ex>>=1; } return (*this)*=now; } modint & operator++(){ val++; if (val == mod) val = 0; return *this; } modint operator++(int){ modint<mod> res = *this; ++*this; return res; } constexpr bool operator==(const modint rhs) noexcept{ return val==rhs.val; } constexpr bool operator!=(const modint rhs) noexcept{ return val!=rhs.val; } friend constexpr ostream &operator<<(ostream& os,const modint x) noexcept{ return os<<(x.val); } friend constexpr istream &operator>>(istream& is,modint& x) noexcept{ uint64_t t; is>>t,x=t; return is; } }; typedef modint<mod> mint; #define vm(n,i) vector<mint>(n,i) #define v2m(n,m,i) vector<vector<mint>>(n,vm(m,i)) #define v3m(n,m,k,i) vector<vector<vector<mint>>>(n,v2m(m,k,i)) #define v4m(n,m,k,l,i) vector<vector<vector<vector<mint>>>>(n,v3m(m,k,l,i)) //累乗 aのb乗、正しmを法として求める long long pw(long long a,long long b,long long m){ if(b==0) return 1; else if(b%2==0){ long long x = pw(a,b/2,m); return (x*x)%m; } else{ long long x = pw(a,b-1,m); return (a*x)%m; } } //行列累乗 matrix power //modをglobalに定義しておく vector<vector<ll>> pw_matrix(vector<vector<ll>> &M,ll n){ if(n==0){ vector<vector<ll>> E = M; rep(i,M.size()){ rep(j,M.size()){ if(i==j) E[i][j] = 1; else E[i][j] = 0; } } return E; } if(n==1) return M; if(n%2==1){ auto K = pw_matrix(M,n-1); int a = M.size(); vector<vector<ll>> L(a,vector<ll>(a)); rep(i,a){ rep(j,a){ ll b = 0; rep(k,a) b += (M[i][k]*K[k][j])%mod; L[i][j] = b%mod; } } return L; } if(n%2==0){ auto K = pw_matrix(M,n/2); int a = M.size(); vector<vector<ll>> L(a,vector<ll>(a)); rep(i,a){ rep(j,a){ ll b = 0; rep(k,a) b += (K[i][k]*K[k][j])%mod; L[i][j] = b%mod; } } return L; } } int main() { riano_; ll ans = 0; ll N; cin >> N; ll aa[N]; ll sum = 0; ll nim = 0; rep(i,N){ cin >> aa[i]; sum += aa[i];nim ^= aa[i]; } if(nim!=0){ ll mx = 0; rep(i,N){ chmax(mx,aa[i]-(aa[i]^nim)); } sum -= (mx-1); } //cout << sum << endl; //main関数内 sizeは適宜買える vector<vector<ll>> M(2,vector<ll>(2)); //もとの行列 vector<ll> a(2,0); //初期値 //行列の成分を代入 a[0] = 1; M[0][0] = (mint(1)/mint(3)).val; M[1][1] = (mint(1)/mint(3)).val; M[1][0] = (mint(2)/mint(3)).val; M[0][1] = (mint(2)/mint(3)).val; auto S = pw_matrix(M,sum); //cout << sum << endl; rep(i,2){ //size変える ans += (S[0][i]*a[i])%mod; ans %= mod; } cout << (mod+1-ans)%mod << endl; }