結果
| 問題 |
No.1667 Forest
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-09-03 22:30:02 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 774 ms / 3,000 ms |
| コード長 | 3,024 bytes |
| コンパイル時間 | 4,602 ms |
| コンパイル使用メモリ | 252,392 KB |
| 最終ジャッジ日時 | 2025-01-24 06:20:39 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 15 |
ソースコード
/**
* author: Sooh
* created: 03.09.2021 22:07:42
**/
#include<bits/stdc++.h>
using namespace std;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
//using mint = modint998244353;
//using mint = modint1000000007;
#endif
#pragma region template
using ll = long long;
template <class T> using V = vector<T>;
#define rep(i,n) for(int i=0;i<n;++i)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) ((int)(x).size())
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define debug(var) do{std::cerr << #var << " : ";view(var);}while(0)
template<typename T> void view(T e){std::cerr << e << std::endl;}
template<typename T> void view(const std::vector<T>& v){for(const auto& e : v){ std::cerr << e << " "; } std::cerr << std::endl;}
template<typename T> void view(const std::vector<std::vector<T> >& vv){cerr << endl;int cnt = 0;for(const auto& v : vv){cerr << cnt << "th : "; view(v); cnt++;} cerr << endl;}
ll power(ll a, ll p){ll ret = 1; while(p){if(p & 1){ret = ret * a;} a = a * a; p >>= 1;} return ret;}
ll modpow(ll a, ll p, ll mod){ll ret = 1; while(p){if(p & 1){ret = ret * a % mod;} a = a * a % mod; p >>= 1;} return ret;}
ll modinv(ll a, ll m) {ll b = m, u = 1, v = 0; while (b) {ll t = a / b ;a -= t * b; swap(a, b);u -= t * v; swap(u, v);}u %= m;if (u < 0) u += m;return u;}
template<class T, class K>bool chmax(T &a, const K b) { if (a<b) { a=b; return 1; } return 0; }
template<class T, class K>bool chmin(T &a, const K b) { if (b<a) { a=b; return 1; } return 0; }
#pragma endregion
int dx[]={1,0,-1,0};
int dy[]={0,1,0,-1};
const int inf = 1001001001;
const ll INF = 1001001001001001001ll;
//const double pi = acos(-1);
//const ll mod = 998244353;
//const ll mod = 1000000007;
ll n, mod;
const int MAX = 1000;
long long fact[MAX], finv[MAX], inv[MAX];
void Comb_init(){
fact[0] = fact[1] = 1;
finv[0] = finv[1] = 1;
inv[1] = 1;
for(int i = 2; i < MAX; i++){
fact[i] = fact[i-1] * i % mod;
inv[i] = mod - inv[mod % i] * (mod / i) % mod;
finv[i] = finv[i - 1] * inv[i] % mod;
}
}
long long comb(long long n, long long k){
if(n < k) return 0;
if(n < 0 || k < 0) return 0;
return fact[n] * finv[k] % mod * finv[n - k] % mod;
}
int main(){
cin.tie(nullptr);
ios::sync_with_stdio(false);
//cout << fixed << setprecision(20);
cin >> n >> mod;
Comb_init();
V<V<ll>> dp(n + 1, V<ll>(n));
auto add = [&](ll &a, ll b)->void{
a += b;
if(a >= mod) a -= mod;
};
dp[0][0] = 1;
for(int v = 0; v < n; v++) for(int e = 0; e <= max(0, v - 1); e++){
for(int nv = 1; nv + v <= n; nv++){
int ne = nv - 1;
ll choose = comb(n - v - 1, nv - 1);
if(nv >= 2) add(dp[v + nv][e + ne], (dp[v][e] * choose) % mod * modpow(nv, nv - 2, mod) % mod);
else add(dp[v + nv][e + ne], dp[v][e]);
}
}
rep(i,n){
cout << dp[n][i] << '\n';
}
}