結果
問題 | No.2383 Naphthol |
ユーザー | noya2 |
提出日時 | 2023-07-14 21:55:15 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,150 bytes |
コンパイル時間 | 4,739 ms |
コンパイル使用メモリ | 271,664 KB |
実行使用メモリ | 7,396 KB |
最終ジャッジ日時 | 2024-09-16 06:52:35 |
合計ジャッジ時間 | 5,508 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | 11 ms
7,268 KB |
testcase_01 | AC | 10 ms
7,224 KB |
testcase_02 | AC | 10 ms
7,136 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | AC | 10 ms
7,268 KB |
testcase_09 | AC | 11 ms
7,272 KB |
testcase_10 | AC | 11 ms
7,136 KB |
testcase_11 | AC | 11 ms
7,268 KB |
testcase_12 | AC | 11 ms
7,264 KB |
testcase_13 | AC | 11 ms
7,264 KB |
testcase_14 | AC | 11 ms
7,264 KB |
testcase_15 | AC | 11 ms
7,396 KB |
testcase_16 | AC | 11 ms
7,264 KB |
testcase_17 | AC | 11 ms
7,268 KB |
testcase_18 | AC | 10 ms
7,140 KB |
testcase_19 | AC | 10 ms
7,136 KB |
testcase_20 | AC | 10 ms
7,224 KB |
ソースコード
#line 1 "d.cpp" #line 1 "c.cpp" #include<bits/stdc++.h> #include<atcoder/all> #define rep(i,n) for (int i = 0; i < int(n); ++i) #define repp(i,m,n) for (int i = m; i < int(n); ++i) #define reb(i,n) for (int i = int(n)-1; i >= 0; --i) #define all(v) v.begin(),v.end() using namespace std; using namespace atcoder; using ll = long long; using ull = unsigned long long; using ld = long double; using P = pair<int, int>; using PL = pair<long long, long long>; using pdd = pair<long double, long double>; using pil = pair<int,ll>; using pli = pair<ll,int>; template<class T>istream &operator>>(istream &is,vector<T> &v){for(auto &e:v)is>>e;return is;} template<typename T>bool range(T a,T b,T x){return (a<=x&&x<b);} template<typename T>bool rrange(T a,T b,T c,T d,T x,T y){return (range(a,c,x)&&range(b,d,y));} template<typename T> T rev(const T& str_or_vec){T res = str_or_vec; reverse(res.begin(),res.end()); return res; } template<typename T>bool chmin(T &a,const T &b){if(a>b){a=b;return true;}return false;} template<typename T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;} template<typename T>void uniq(vector<T> &v){sort(v.begin(),v.end());v.erase(unique(v.begin(),v.end()),v.end());} template<typename T1, typename T2>void print(pair<T1,T2> a); template<typename T>void print(vector<T> v); template<typename T>void print(vector<vector<T>> v); void print(){ putchar(' '); } void print(bool a){ printf("%d", a); } void print(int a){ printf("%d", a); } void print(long a){ printf("%ld", a); } void print(long long a){ printf("%lld", a); } void print(char a){ printf("%c", a); } void print(char a[]){ printf("%s", a); } void print(const char a[]){ printf("%s", a); } void print(long double a){ printf("%.15Lf", a); } void print(const string& a){ for(auto&& i : a) print(i); } void print(unsigned int a){ printf("%u", a); } void print(unsigned long long a) { printf("%llu", a); } template<class T> void print(const T& a){ cout << a; } int out(){ putchar('\n'); return 0; } template<class T> int out(const T& t){ print(t); putchar('\n'); return 0; } template<class Head, class... Tail> int out(const Head& head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; } template<typename T1,typename T2>void print(pair<T1,T2> a){print(a.first);print(),print(a.second);} template<typename T>void print(vector<T> v){for(auto ite=v.begin();ite!=v.end();){print(*ite);if(++ite!=v.end())print();}} template<typename T>void print(vector<vector<T>> v){for(auto ite=v.begin();ite!=v.end();){print(*ite);if(++ite!=v.end())out();}} void yes(){out("Yes");} void no (){out("No");} void yn (bool t){if(t)yes();else no();} void fast_io(){cin.tie(0); ios::sync_with_stdio(0); cout<<fixed<<setprecision(20);} void o(){out("!?");} int popc(ll n){ return __builtin_popcountll((ull)(n)); } namespace noya2{ const int INF = 1001001007; const long long mod1 = 998244353; const long long mod2 = 1000000007; const long long inf = 2e18; const long double pi = 3.14159265358979323; const long double eps = 1e-7; const vector<int> dx = {0,1,0,-1,1,1,-1,-1}; const vector<int> dy = {1,0,-1,0,1,-1,-1,1}; const string ALP = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; const string alp = "abcdefghijklmnopqrstuvwxyz"; const string NUM = "0123456789"; } // namespace noya2 using namespace noya2; using mint = modint998244353; //using mint = modint1000000007; //using mint = modint; void out(mint a){out(a.val());} void out(vector<mint> a){vector<ll> b(a.size()); rep(i,a.size()) b[i] = a[i].val(); out(b);} void out(vector<vector<mint>> a){for (auto v : a) out(v);} #line 2 "binom.hpp" #line 4 "binom.hpp" namespace noya2{ template<typename T> struct Binom{ Binom(int lim = 300000){ extend(lim); } static T fact(int x) { if (x < 0) return T(0); extend(x); return kaijo[x]; } static T ifact(int x){ if (x < 0) return T(0); extend(x); return kainv[x]; } static T C(int n, int r){ if (n < 0 || n < r || r < 0) return T(0); extend(n); return kaijo[n] * kainv[r] * kainv[n-r]; } static T P(int n, int r){ if (n < 0 || n < r || r < 0) return T(0); extend(n); return kaijo[n] * kainv[n-r]; } static T H(int n, int r){ if (n < 0 || r < 0) return T(0); return (r == 0 ? T(1) : C(n+r-1,r-1)); } static T Inv(int n){ assert(0 < n); return ifact(n) * fact(n-1); } T operator()(int n, int r){ return C(n,r); } template<class... Cnts> static T M(const Cnts&... cnts){ return multinomial(0,T(1),cnts...); } private: static T multinomial(const int& sum, const T& div_prod){ if (sum < 0) return T(0); return fact(sum) * div_prod; } template<class... Tail> static T multinomial(const int& sum, const T& div_prod, const int& n1, const Tail&... tail){ if (n1 < 0) return T(0); return multinomial(sum+n1,div_prod*ifact(n1),tail...); } static std::vector<T> kaijo, kainv; static void extend(int lim){ if (kaijo.empty()){ kaijo = {1,1}; kainv = {1,1}; } int siz = kaijo.size(); if (siz > lim) return ; int nsiz = siz * 2; kaijo.resize(nsiz+1), kainv.resize(nsiz+1); for (int i = siz; i <= nsiz; i++) kaijo[i] = kaijo[i-1] * T(i); kainv[nsiz] = kaijo[nsiz].inv(); for (int i = nsiz-1; i >= siz; i--) kainv[i] = kainv[i+1] * T(i+1); extend(lim); } }; template<typename T> std::vector<T>Binom<T>::kaijo = vector<T>(2,T(1)); template<typename T> std::vector<T>Binom<T>::kainv = vector<T>(2,T(1)); } // namespace noya2 #line 79 "d.cpp" void solve(){ int n, k; cin >> n >> k; Binom<mint> bnm; mint ans = 0; ans += bnm(2*n+4,k); if (k % 2 == 0) ans += bnm(n+2,k/2); if (n % 2 == 0){ if (k % 2 == 0) ans += bnm(n+2,k/2); } else { if (k % 2 == 0) ans += bnm(n+2,k/2); else ans += 2 * bnm(n+1,k/2); } if (k % 2 == 0) ans += bnm(n+2,k/2); ans /= 4; out(ans); } int main(){ fast_io(); int t = 1; //cin >> t; while(t--) solve(); }