結果
問題 | No.2149 Vanitas Vanitatum |
ユーザー | PCTprobability |
提出日時 | 2022-12-06 12:14:44 |
言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,515 bytes |
コンパイル時間 | 4,150 ms |
コンパイル使用メモリ | 269,240 KB |
実行使用メモリ | 50,528 KB |
最終ジャッジ日時 | 2024-10-13 03:54:39 |
合計ジャッジ時間 | 7,072 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
(要ログイン)
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 | 62 ms
50,304 KB |
testcase_01 | AC | 62 ms
50,304 KB |
testcase_02 | AC | 62 ms
50,304 KB |
testcase_03 | AC | 61 ms
50,304 KB |
testcase_04 | AC | 56 ms
50,304 KB |
testcase_05 | AC | 55 ms
50,304 KB |
testcase_06 | AC | 59 ms
50,304 KB |
testcase_07 | AC | 61 ms
50,300 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 60 ms
50,176 KB |
testcase_11 | AC | 64 ms
50,304 KB |
testcase_12 | AC | 80 ms
50,372 KB |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 66 ms
50,352 KB |
testcase_17 | AC | 77 ms
50,304 KB |
testcase_18 | AC | 91 ms
50,332 KB |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | AC | 82 ms
50,304 KB |
testcase_25 | WA | - |
testcase_26 | AC | 134 ms
50,304 KB |
ソースコード
#include <bits/stdc++.h>using namespace std;#if __has_include(<atcoder/all>)#include <atcoder/all>using namespace atcoder;#endifusing ll = long long;using ld = long double;using ull = unsigned long long;#define endl "\n"typedef pair<int, int> Pii;#define REP(i, n) for (int i = 0; i < (n); ++i)#define REP3(i, m, n) for (int i = (m); (i) < int(n); ++ (i))#define FOR(i,a,b) for(ll i=a;i<=(ll)(b);i++)#define rep(i,a,b) for(int i=(int)(a);i<(int)(b);i++)#define ALL(x) begin(x), end(x)#define rrep(i,a,b) for(int i=a;i>=b;i--)#define fore(i,a) for(auto &i:a)#define all(s) (s).begin(),(s).end()#define drep2(i, m, n) for (int i = (m)-1; i >= (n); --i)#define drep(i, n) drep2(i, n, 0)#define rever(vec) reverse(vec.begin(), vec.end())#define sor(vec) sort(vec.begin(), vec.end())#define fi first#define se second#define pb push_back#define P pair<ll,ll>#define PQminll priority_queue<ll, vector<ll>, greater<ll>>#define PQmaxll priority_queue<ll,vector<ll>,less<ll>>#define PQminP priority_queue<P, vector<P>, greater<P>>#define PQmaxP priority_queue<P,vector<P>,less<P>>#define NP next_permutation//const ll mod = 1000000009;const ll mod = 998244353;//const ll mod = 1000000007;const ll inf = 4100000000000000000ll;const ld eps = ld(0.00000000001);static const long double pi = 3.141592653589793;template<class T>void vcin(vector<T> &n){for(int i=0;i<int(n.size());i++) cin>>n[i];}template<class T,class K>void vcin(vector<T> &n,vector<K> &m){for(int i=0;i<int(n.size());i++) cin>>n[i]>>m[i];}template<class T>void vcout(vector<T> &n){for(int i=0;i<int(n.size());i++){cout<<n[i]<<" ";}cout<<endl;}template<class T>void vcin(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cin>>n[i][j];}}}template<class T>void vcout(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cout<<n[i][j]<<" ";}cout<<endl;}cout<<endl;}void yes(bool a){cout<<(a?"yes":"no")<<endl;}void YES(bool a){cout<<(a?"YES":"NO")<<endl;}void Yes(bool a){cout<<(a?"Yes":"No")<<endl;}void possible(bool a){ cout<<(a?"possible":"impossible")<<endl; }void Possible(bool a){ cout<<(a?"Possible":"Impossible")<<endl; }void POSSIBLE(bool a){ cout<<(a?"POSSIBLE":"IMPOSSIBLE")<<endl; }template<class T>auto min(const T& a){ return *min_element(all(a)); }template<class T>auto max(const T& a){ return *max_element(all(a)); }template<class T,class F>void print(pair<T,F> a){cout<<a.fi<<" "<<a.se<<endl;}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<class T> void ifmin(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}}template<class T> void ifmax(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}}ll fastgcd(ll u,ll v){ll shl=0;while(u&&v&&u!=v){bool eu=!(u&1);bool ev=!(v&1);if(eu&&ev){++shl;u>>=1;v>>=1;}else if(eu&&!ev){u>>=1;}else if(!eu&&ev){v>>=1;}else if(u>=v){u=(u-v)>>1;}else{ll tmp=u;u=(v-u)>>1;v=tmp;}}return !u?v<<shl:u<<shl;}ll modPow(ll a, ll n, ll mod) { if(mod==1) return 0;ll ret = 1; ll p = a % mod; while (n) { if (n & 1) ret = ret * p % mod; p = p * p % mod; n >>= 1;} return ret; }vector<ll> divisor(ll x){ vector<ll> ans; for(ll i = 1; i * i <= x; i++){ if(x % i == 0) {ans.push_back(i); if(i*i!=x){ ans.push_back(x / ans[i]);}}}sor(ans); return ans; }ll pop(ll x){return __builtin_popcountll(x);}ll poplong(ll x){ll y=-1;while(x){x/=2;y++;}return y;}P hyou(P a){ll x=fastgcd(abs(a.fi),abs(a.se));a.fi/=x;a.se/=x;if(a.se<0){a.fi*=-1;a.se*=-1;}return a;}P Pplus(P a,P b){ return hyou({a.fi*b.se+b.fi*a.se,a.se*b.se});}P Ptimes(P a,ll b){ return hyou({a.fi*b,a.se});}P Ptimes(P a,P b){ return hyou({a.fi*b.fi,a.se*b.se});}P Pminus(P a,P b){ return hyou({a.fi*b.se-b.fi*a.se,a.se*b.se});}P Pgyaku(P a){ return hyou({a.se,a.fi});}template<class T>struct Sum{vector<T> data;Sum(const vector<T>& v):data(v.size()+1){for(ll i=0;i<v.size();i++) data[i+1]=data[i]+v[i];}T get(ll l,ll r) const {return data[r]-data[l];}};template<class T>struct Sum2{vector<vector<T>> data;Sum2(const vector<vector<T>> &v):data(v.size()+1,vector<T>(v[0].size()+1)){for(int i=0;i<v.size();i++) for(int j=0;j<v[i].size();j++) data[i+1][j+1]=data[i][j+1]+v[i][j];for(int i=0;i<v.size();i++) for(int j=0;j<v[i].size();j++) data[i+1][j+1]+=data[i+1][j];}T get(ll x1,ll y1,ll x2,ll y2) const {return data[x2][y2]+data[x1][y1]-data[x1][y2]-data[x2][y1];}};void cincout(){ios::sync_with_stdio(false);std::cin.tie(nullptr);cout<< fixed << setprecision(15);}constexpr ll MAX = 2000010;ll fac[MAX],finv[MAX],inv[MAX];void COMinit(){fac[0]=fac[1]=1;finv[0]=finv[1]=1;inv[1]=1;for(int i=2;i<MAX;i++){fac[i]=fac[i-1]*i%mod;inv[i]=mod-inv[mod%i]*(mod/i)%mod;finv[i]=finv[i-1]*inv[i]%mod;}}ll binom(ll n,ll k){if(n<k) return 0;if(n<0||k<0) return 0;return fac[n]*(finv[k]*finv[n-k]%mod)%mod;}ll HOM(ll n,ll k){if(n==0&&k==0) return 1;return binom(n+k-1,k);}ll POM(ll n,ll k){if(n<k) return 0;return fac[n]*finv[n-k]%mod;}using mint = modint998244353;int main() {cincout();COMinit();ll n;cin>>n;vector<ll> a(n);vcin(a);rever(a);mint ans=1;ll sum=0;for(int i=0;i<n;i++){sum+=a[i];for(int j=((i+1)%2);j<a[i];j+=2){ans/=1+i/2+j/2;}}if(sum%2) ans*=0;ans*=fac[sum/2];cout<<ans.val()<<endl;}