結果

問題 No.1062 素敵なスコア
ユーザー Enjapma_kyoproEnjapma_kyopro
提出日時 2020-05-22 20:34:29
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 168 ms / 2,000 ms
コード長 4,948 bytes
コンパイル時間 1,772 ms
コンパイル使用メモリ 176,140 KB
実行使用メモリ 24,860 KB
最終ジャッジ日時 2024-10-05 12:03:03
合計ジャッジ時間 4,921 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
(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 22 ms
22,016 KB
testcase_01 AC 22 ms
22,272 KB
testcase_02 AC 22 ms
22,144 KB
testcase_03 AC 26 ms
22,144 KB
testcase_04 AC 22 ms
22,272 KB
testcase_05 AC 23 ms
22,272 KB
testcase_06 AC 22 ms
22,144 KB
testcase_07 AC 23 ms
22,272 KB
testcase_08 AC 23 ms
22,272 KB
testcase_09 AC 24 ms
22,272 KB
testcase_10 AC 22 ms
22,272 KB
testcase_11 AC 22 ms
22,144 KB
testcase_12 AC 23 ms
22,144 KB
testcase_13 AC 24 ms
22,272 KB
testcase_14 AC 25 ms
22,400 KB
testcase_15 AC 25 ms
22,272 KB
testcase_16 AC 23 ms
22,272 KB
testcase_17 AC 25 ms
22,144 KB
testcase_18 AC 84 ms
23,424 KB
testcase_19 AC 168 ms
24,732 KB
testcase_20 AC 82 ms
23,424 KB
testcase_21 AC 82 ms
23,424 KB
testcase_22 AC 155 ms
24,732 KB
testcase_23 AC 85 ms
23,424 KB
testcase_24 AC 56 ms
22,784 KB
testcase_25 AC 90 ms
23,424 KB
testcase_26 AC 88 ms
23,552 KB
testcase_27 AC 54 ms
22,656 KB
testcase_28 AC 164 ms
24,732 KB
testcase_29 AC 53 ms
22,784 KB
testcase_30 AC 153 ms
24,860 KB
testcase_31 AC 162 ms
24,828 KB
testcase_32 AC 23 ms
22,144 KB
testcase_33 AC 156 ms
24,796 KB
testcase_34 AC 160 ms
24,844 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include <bits/stdc++.h>
#include <unistd.h>
#include <sys/time.h>
#include <stdlib.h>
 
using namespace std;
 
typedef long long ll;
typedef pair<ll,ll> P;
typedef pair<P, ll> T;
 
long long int INF = 2e18;
const ll fact_table = 1200008;
double Pi = 3.1415926535897932384626;

priority_queue <ll> pql;
priority_queue <P> pqp;
priority_queue <P> bag;
//big priority queue
priority_queue <ll,vector<ll>,greater<ll> > pqls;
priority_queue <P,vector<P>,greater<P> > pqps;
//small priority queue
//top pop
 
ll dx[8]={1,0,-1,0,1,1,-1,-1};
ll dy[8]={0,1,0,-1,1,-1,-1,1};
char dir[] = "DRUL";
//↓,→,↑,←

#define endl "\n"
#ifdef ENJAPMA
    #undef endl
#endif
#define p(x) cout<<x<<endl;
#define el cout<<endl;
#define pe(x) cout<<x<<" ";
#define ps(x) cout<<fixed<<setprecision(25)<<x<<endl;
#define pu(x) cout<<(x);
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define CLEAR(a) a = decltype(a)(); 
#define pc(x) cout << x << ",";
 
const ll mod = 998244353ll;
// const ll mod = 1000000007ll;
  
ll mypow(ll number1,ll number2, ll mod){
    if(number2 == 0){
        return 1ll;
    }else{
        ll number3 = mypow(number1,number2 / 2, mod);
        number3 *= number3;
        number3 %= mod;
        if(number2%2==1){
            number3 *= number1;
            number3 %= mod;
        }
        return number3;
    }
}
void YES(bool condition){
    if(condition){
        p("YES");
    }else{
        p("NO");
    }
    return;
}
void Yes(bool condition){
    if(condition){
        p("Yes");
    }else{
        p("No");
    }
    return;
}

namespace NTT {
  void DFT(ll m, ll root, vector<ll> &a, bool rev = false) {
    ll N = a.size(), h = 0;
 
    for (ll i = 0; 1 << i < N; i++) h++;
    for (ll i = 0; i < N; i++) {
      ll j = 0;
      for (ll k = 0; k < h; k++)
        j |= (i >> k & 1) << (h - 1 - k);
      if (i < j) swap(a[i], a[j]);
    }
 
    for (ll i = 1; i < N; i *= 2) {
      ll base = mypow(root, (m - 1) / i / 2, m);
      if (rev) base = mypow(base, m - 2, m);
      ll w = 1;
      for (ll j = 0; j < i; j++) {
        for (ll k = 0; k < N; k += i*2) {
          ll s = a[j+k], t = a[j+k+i] * w % m;
          a[j+k+0] = (s + t) % m;
          a[j+k+i] = (s - t + m) % m;
        }
        w = w * base % m;
      }
    }
 
    if (rev) {
      ll tmp = mypow(N, m-2, m);
      for(ll &v : a) v = v * tmp % m;
    }
  }
 
  //(1012924417, 5), (924844033, 5)
 
  vector<ll> conv(ll _mod, ll root, const vector<ll> &a, const vector<ll> &b) {
    ll s = 1, t = a.size() + b.size() - 1;
    while(s < t) s *= 2;
 
    vector<ll> F(s), G(s);
    for(ll i = 0; i < (ll)a.size(); i++) F[i] = a[i];
    for(ll i = 0; i < (ll)b.size(); i++) G[i] = b[i];
    DFT(_mod, root, F); DFT(_mod, root, G);
 
    for(ll i = 0; i < s; i++) F[i] = (ll)F[i] * G[i] % _mod;
    DFT(_mod, root, F, true);
 
    return F;
  }
};
 

ll fact[fact_table + 5],rfact[fact_table + 5]; 
 
void c3_init(){
    fact[0] = rfact[0] = 1;
    for(ll i=1; i<=fact_table; i++){
        fact[i] = (fact[i-1]*i) % mod;
    }
    rfact[fact_table] = mypow(fact[fact_table],mod - 2, mod);
    for(ll i=fact_table; i>=1; i--){
       rfact[i-1] = rfact[i] * i;
       rfact[i-1] %= mod;
    }
    return;}
ll c3(ll n,ll r){
    assert(n >= r);
    assert(n >= 0);
    assert(r >= 0);
    return (((fact[n] * rfact[r]) % mod ) * rfact[n-r]) % mod;}

bool multicase = false;

ll n,m,num,a,b,c,d,e,q;

ll x[100005], y[100005], z[100005];
ll k, ans;

vector<ll> g;
vector<ll> h;

void solve(){
    ll n, a1, a2;
    cin >> n >> a1 >> a2;
    if(a1 > a2)swap(a1, a2);
    assert(2 <= n && n <= 100000);
    assert(1 <= a1 && a1 <= n - 1);
    assert(1 <= a2 && a2 <= n - 1);
    ll A = a1, B = a2 - a1, C = n - a2;
    ll base =  A * A;
    base %= mod;
    base += (B * B) % mod;
    base %= mod;
    base += (C * C) % mod;
    base %= mod;
    base *= fact[n-1];
    base %= mod;
    ll res = 0;
    for(ll i=0;i<A;i++){
        ll value = rfact[i] * rfact[A - i - 1];
        value %= mod;
        g.pb(value);
    }
    for(ll i=0;i<C;i++){
        ll value = rfact[i] * rfact[C - i - 1];
        value %= mod;
        h.pb(value); 
    }
    auto res_vector = NTT::conv(mod, 3ll, g, h);
    for(ll i=0;i<A+C-1;i++){
        assert(i < res_vector.size());
        ll value = res_vector[i] * fact[i];
        value %= mod;
        value *= fact[n-i-2];
        value %= mod;
        ans += value;
        ans %= mod;
    }
    ans *= 2ll;
    ans %= mod;
    ans *= fact[A];
    ans %= mod;
    ans *= fact[C];
    ans %= mod;
    ans += base;
    ans %= mod;
    p(ans);
    return;
}

int main(){
    // init();
    c3_init();
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    ll q, testcase = 1;
    if(multicase){
        cin >> q;
    }else{
        q = 1; 
    }
    while(q--){
        // pu("Case ");pu("#");pu(testcase);pu(": ");
        solve();
        testcase++;
    }
    // solve();
    return 0;
}














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