結果
問題 | No.1967 Sugoroku Optimization |
ユーザー | milkcoffee |
提出日時 | 2022-05-20 18:36:28 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 49 ms / 2,000 ms |
コード長 | 5,114 bytes |
コンパイル時間 | 4,812 ms |
コンパイル使用メモリ | 275,948 KB |
実行使用メモリ | 42,624 KB |
最終ジャッジ日時 | 2024-09-21 02:25:36 |
合計ジャッジ時間 | 6,181 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 5 ms
11,136 KB |
testcase_01 | AC | 5 ms
11,264 KB |
testcase_02 | AC | 6 ms
11,152 KB |
testcase_03 | AC | 48 ms
42,624 KB |
testcase_04 | AC | 6 ms
11,264 KB |
testcase_05 | AC | 44 ms
39,168 KB |
testcase_06 | AC | 48 ms
41,192 KB |
testcase_07 | AC | 5 ms
11,264 KB |
testcase_08 | AC | 35 ms
32,216 KB |
testcase_09 | AC | 26 ms
27,004 KB |
testcase_10 | AC | 16 ms
18,688 KB |
testcase_11 | AC | 7 ms
12,172 KB |
testcase_12 | AC | 32 ms
30,424 KB |
testcase_13 | AC | 18 ms
20,736 KB |
testcase_14 | AC | 6 ms
11,648 KB |
testcase_15 | AC | 7 ms
11,892 KB |
testcase_16 | AC | 6 ms
12,048 KB |
testcase_17 | AC | 7 ms
12,288 KB |
testcase_18 | AC | 5 ms
11,148 KB |
testcase_19 | AC | 5 ms
11,112 KB |
testcase_20 | AC | 49 ms
42,624 KB |
testcase_21 | AC | 5 ms
11,180 KB |
testcase_22 | AC | 48 ms
42,496 KB |
testcase_23 | AC | 31 ms
30,196 KB |
ソースコード
#include <bits/stdc++.h> #if __has_include(<atcoder/all>) #include <atcoder/all> using namespace atcoder; #endif using namespace std; /* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") */ #define ll long long #define rep(i, n) for (ll i = 0; i < n; ++i) #define rep_up(i, a, n) for (ll i = a; i < n; ++i) #define rep_down(i, a, n) for (ll i = a; i >= n; --i) #define P pair<ll, ll> #define pb push_back #define bit_count(x) __builtin_popcountll(x) #define gcd(a,b) __gcd(a,b) #define lcm(a,b) a / gcd(a,b) * b #define endl "\n" #define all(v) v.begin(), v.end() #define fi first #define se second #define vvvvll vector< vector <vector <vector<ll> > > > #define vvvll vector< vector< vector<ll> > > #define vvll vector< vector<ll> > #define vll vector<ll> #define pqll priority_queue<ll> #define pqllg priority_queue<ll, vector<ll>, greater<ll>> template<class T> inline void vin(vector<T>& v) { rep(i, v.size()) cin >> v.at(i); } template <class T> using V = vector<T>; constexpr ll INF = (1ll << 60); //constexpr ll mod = 1000000007; constexpr ll mod = 998244353; constexpr double pi = 3.14159265358979323846; template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } template <typename T> void pt(T val) { cout << val << "\n"; } template <typename T> void pt_vll(vector<T> &v) { ll vs = v.size(); rep(i, vs) { cout << v[i]; if (i == vs - 1) cout << "\n"; else cout << " "; } } ll mypow(ll a, ll n) { ll ret = 1; if (n == 0) return 1; if (a == 0) return 0; rep(i, n) { if (ret > (ll)(9e18 + 10) / a) return -1; ret *= a; } return ret; } long long modpow(long long a, long long n, long long mod) { long long res = 1; while (n > 0) { if (n & 1) res = res * a % mod; a = a * a % mod; n >>= 1; } return res; } long long modinv(long long a, long long m) { long long b = m, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; } const int MAX = 10010000; long long fac[MAX], finv[MAX], inv[MAX]; // テーブルを作る前処理 void COMinit() { fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; for (ll 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; } } // 二項係数計算 long long COM(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; } vector<ll> enum_div(ll n) { //約数全列挙 vector<ll> ret; for (ll i = 1; i * i <= n; ++i) { if (n % i == 0) { ret.push_back(i); if (i * i != n) { ret.push_back(n / i); } } } return ret; } void make_prime(vector<ll> &ret, ll n) { //素因数分解 ll x = n; for (ll i = 2; i * i <= x; i++) { while (n % i == 0) { n /= i; ret.push_back(i); } } if (n != 1) { ret.push_back(n); } return; } vector<bool> prime(1000010, true); vector<ll> pri(1000010); vector<bool> isprime(int N) { //素数判定 if (N >= 0) prime[0] = false; if (N >= 1) prime[1] = false; for (ll i = 2; i * i <= N; i++) { if (!prime[i]) { continue; } for (ll j = i * i; j <= N; j += i) { if (prime[j]) pri[j] = i; prime[j] = false; } } return prime; } map<ll,ll> compression(vector<ll> v){ map<ll,ll> ret; ll cnt = 0; sort(v.begin(),v.end()); for(ll i=0; i<v.size(); i++){ if(!ret.count(v[i])){ ret[v[i]] = cnt; cnt++; } } return ret; } //素因数分解: void make_prime(vector<ll> &ret, ll n) //素数判定 : vector<bool> isprime(int N) //約数全列挙: vector<ll> enum_div(ll n) void solve(){ ll n, m, k, cnt = 0, sum = 0, ans = 0; cin>>n>>k; assert(2<=n<=2000&&1<=k<=n); vvll dp(k+1,vll(n+1)); dp[0][0]=1; vll a(n+1); rep(i,n+1){ if(i==0) continue; a[i]=modinv(i,mod); } rep(i,k){ sum=0; rep(j,n){ sum+=dp[i][j]*a[n-j]; sum%=mod; dp[i+1][j+1]+=sum; dp[i+1][j+1]%=mod; } } rep(i,k){ ans+=dp[i+1][n]; ans%=mod; } pt(ans); } int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); //cout << fixed << setprecision(16); //ll T; //cin>>T; //rep(ca,T) solve(); }