結果
| 問題 |
No.1513 simple 門松列 problem
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-05-21 22:09:09 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 170 ms / 3,000 ms |
| コード長 | 4,668 bytes |
| コンパイル時間 | 2,204 ms |
| コンパイル使用メモリ | 203,004 KB |
| 最終ジャッジ日時 | 2025-01-21 15:26:44 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 18 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define each(e, v) for(auto &e: v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
//const int MOD = 1000000007;
const int MOD = 998244353;
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;};
template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;};
struct io_setup{
io_setup(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout << fixed << setprecision(15);
}
} io_setup;
template<int mod>
struct Mod_Int{
int x;
Mod_Int() : x(0) {}
Mod_Int(long long y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
Mod_Int &operator += (const Mod_Int &p){
if((x += p.x) >= mod) x -= mod;
return *this;
}
Mod_Int &operator -= (const Mod_Int &p){
if((x += mod - p.x) >= mod) x -= mod;
return *this;
}
Mod_Int &operator *= (const Mod_Int &p){
x = (int) (1LL * x * p.x % mod);
return *this;
}
Mod_Int &operator /= (const Mod_Int &p){
*this *= p.inverse();
return *this;
}
Mod_Int &operator ++ () {return *this += Mod_Int(1);}
Mod_Int operator ++ (int){
Mod_Int tmp = *this;
++*this;
return tmp;
}
Mod_Int &operator -- () {return *this -= Mod_Int(1);}
Mod_Int operator -- (int){
Mod_Int tmp = *this;
--*this;
return tmp;
}
Mod_Int operator - () const {return Mod_Int(-x);}
Mod_Int operator + (const Mod_Int &p) const {return Mod_Int(*this) += p;}
Mod_Int operator - (const Mod_Int &p) const {return Mod_Int(*this) -= p;}
Mod_Int operator * (const Mod_Int &p) const {return Mod_Int(*this) *= p;}
Mod_Int operator / (const Mod_Int &p) const {return Mod_Int(*this) /= p;}
bool operator == (const Mod_Int &p) const {return x == p.x;}
bool operator != (const Mod_Int &p) const {return x != p.x;}
Mod_Int inverse() const{
assert(*this != Mod_Int(0));
return pow(mod-2);
}
Mod_Int pow(long long k) const{
Mod_Int now = *this, ret = 1;
for(; k > 0; k >>= 1, now *= now){
if(k&1) ret *= now;
}
return ret;
}
friend ostream &operator << (ostream &os, const Mod_Int &p){
return os << p.x;
}
friend istream &operator >> (istream &is, Mod_Int &p){
long long a;
is >> a;
p = Mod_Int<mod>(a);
return is;
}
};
using mint = Mod_Int<MOD>;
int main(){
int N, K; cin >> N >> K;
vector<vector<mint>> dp1(K+1, vector<mint>(K+1, 0)), dp2(K+1, vector<mint>(K+1, 0));
dp1[0][0] = 1;
rep(i, N){
vector<vector<mint>> tmp1(K+1, vector<mint>(K+1, 0)), tmp2(K+1, vector<mint>(K+1, 0));
if(i == 0){
rep(j, K){
tmp1[K][j]++, tmp2[K][j] += j;
}
}
else if(i == 1){
rep(j, K){
rep(k, K){
if(j == k) continue;
tmp1[j][k] += dp1[K][j];
tmp2[j][k] += dp2[K][j]+tmp1[j][k]*k;
}
}
}
else{
vector<mint> u1(K, 0), u2(K, 0), d1(K, 0), d2(K, 0);
rep(j, K){
rep(k, K){
if(j > k){
u1[k] += dp1[j][k], u2[k] += dp2[j][k];
}
if(j < k){
d1[k] += dp1[j][k], d2[k] += dp2[j][k];
}
}
}
rep(j, K){
rep(k, K){
if(j < k){
tmp1[j][k] += u1[j]-dp1[k][j];
tmp2[j][k] += u2[j]-dp2[k][j];
}
if(j > k){
tmp1[j][k] += d1[j]-dp1[k][j];
tmp2[j][k] += d2[j]-dp2[k][j];
}
tmp2[j][k] += tmp1[j][k]*k;
}
}
}
swap(dp1, tmp1), swap(dp2, tmp2);
}
mint a1 = 0, a2 = 0;
rep(i, K+1){
rep(j, K+1){
a1 += dp1[i][j], a2 += dp2[i][j];
}
}
cout << a1 << ' ' << a2 << '\n';
}