結果
問題 | No.2951 Similar to Mex |
ユーザー | apricity |
提出日時 | 2024-11-22 23:53:41 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 404 ms / 2,000 ms |
コード長 | 9,895 bytes |
コンパイル時間 | 1,541 ms |
コンパイル使用メモリ | 134,848 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-22 23:53:50 |
合計ジャッジ時間 | 9,485 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 3 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 3 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 3 ms
5,248 KB |
testcase_11 | AC | 83 ms
5,248 KB |
testcase_12 | AC | 10 ms
5,248 KB |
testcase_13 | AC | 9 ms
5,248 KB |
testcase_14 | AC | 147 ms
5,248 KB |
testcase_15 | AC | 205 ms
5,248 KB |
testcase_16 | AC | 91 ms
5,248 KB |
testcase_17 | AC | 97 ms
5,248 KB |
testcase_18 | AC | 157 ms
5,248 KB |
testcase_19 | AC | 95 ms
5,248 KB |
testcase_20 | AC | 154 ms
5,248 KB |
testcase_21 | AC | 201 ms
5,248 KB |
testcase_22 | AC | 153 ms
5,248 KB |
testcase_23 | AC | 288 ms
5,248 KB |
testcase_24 | AC | 270 ms
5,248 KB |
testcase_25 | AC | 315 ms
5,248 KB |
testcase_26 | AC | 236 ms
5,248 KB |
testcase_27 | AC | 381 ms
5,248 KB |
testcase_28 | AC | 388 ms
5,248 KB |
testcase_29 | AC | 373 ms
5,248 KB |
testcase_30 | AC | 373 ms
5,248 KB |
testcase_31 | AC | 395 ms
5,248 KB |
testcase_32 | AC | 362 ms
5,248 KB |
testcase_33 | AC | 365 ms
5,248 KB |
testcase_34 | AC | 404 ms
5,248 KB |
testcase_35 | AC | 372 ms
5,248 KB |
testcase_36 | AC | 2 ms
5,248 KB |
testcase_37 | AC | 2 ms
5,248 KB |
testcase_38 | AC | 2 ms
5,248 KB |
testcase_39 | AC | 2 ms
5,248 KB |
testcase_40 | AC | 31 ms
5,248 KB |
testcase_41 | AC | 2 ms
5,248 KB |
testcase_42 | AC | 52 ms
5,248 KB |
testcase_43 | AC | 2 ms
5,248 KB |
testcase_44 | AC | 360 ms
5,248 KB |
ソースコード
#include<iostream> #include<string> #include<vector> #include<algorithm> #include<numeric> #include<cmath> #include<utility> #include<tuple> #include<cstdint> #include<cstdio> #include<iomanip> #include<map> #include<queue> #include<set> #include<stack> #include<deque> #include<unordered_map> #include<unordered_set> #include<bitset> #include<cctype> #include<chrono> #include<random> #include<cassert> #include<cstddef> #include<iterator> #include<string_view> #include<type_traits> #ifdef LOCAL # include "debug_print.hpp" # define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else # define debug(...) (static_cast<void>(0)) #endif using namespace std; #define rep1(a) for(int i = 0; i < a; i++) #define rep2(i, a) for(int i = 0; i < a; i++) #define rep3(i, a, b) for(int i = a; i < b; i++) #define rep4(i, a, b, c) for(int i = a; i < b; i += c) #define overload4(a, b, c, d, e, ...) e #define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__) #define rrep1(a) for(int i = (a)-1; i >= 0; i--) #define rrep2(i, a) for(int i = (a)-1; i >= 0; i--) #define rrep3(i, a, b) for(int i = (b)-1; i >= a; i--) #define rrep4(i, a, b, c) for(int i = (b)-1; i >= a; i -= c) #define rrep(...) overload4(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__) #define ALL(v) v.begin(), v.end() #define RALL(v) v.rbegin(), v.rend() #define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() ); #define pb push_back using ll = long long; using D = double; using LD = long double; using P = pair<int, int>; using vi = vector<int>; using vl = vector<ll>; template <class T> using vc = vector<T>; template <class T> using vvc = vector<vc<T>>; template <class T> using vvvc = vector<vvc<T>>; template <class T> using vvvvc = vector<vvvc<T>>; template <class T> using vvvvvc = vector<vvvvc<T>>; #define vv(type, name, h, ...) \ vector<vector<type>> name(h, vector<type>(__VA_ARGS__)) #define vvv(type, name, h, w, ...) \ vector<vector<vector<type>>> name( \ h, vector<vector<type>>(w, vector<type>(__VA_ARGS__))) #define vvvv(type, name, a, b, c, ...) \ vector<vector<vector<vector<type>>>> name( \ a, vector<vector<vector<type>>>( \ b, vector<vector<type>>(c, vector<type>(__VA_ARGS__)))) template<typename T> using PQ = priority_queue<T,vector<T>>; template<typename T> using minPQ = priority_queue<T, vector<T>, greater<T>>; 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; } void yesno(bool flag) {cout << (flag?"Yes":"No") << "\n";} template<typename T, typename U> ostream &operator<<(ostream &os, const pair<T, U> &p) { os << p.first << " " << p.second; return os; } template<typename T, typename U> istream &operator>>(istream &is, pair<T, U> &p) { is >> p.first >> p.second; return is; } template<typename T> ostream &operator<<(ostream &os, const vector<T> &v) { int s = (int)v.size(); for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i]; return os; } template<typename T> istream &operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; } void in() {} template<typename T, class... U> void in(T &t, U &...u) { cin >> t; in(u...); } void out() { cout << "\n"; } template<typename T, class... U, char sep = ' '> void out(const T &t, const U &...u) { cout << t; if (sizeof...(u)) cout << sep; out(u...); } void outr() {} template<typename T, class... U, char sep = ' '> void outr(const T &t, const U &...u) { cout << t; outr(u...); } template <uint32_t mod> struct LazyMontgomeryModInt { using mint = LazyMontgomeryModInt; using i32 = int32_t; using u32 = uint32_t; using u64 = uint64_t; static constexpr u32 get_r() { u32 ret = mod; for (i32 i = 0; i < 4; ++i) ret *= 2 - mod * ret; return ret; } static constexpr u32 r = get_r(); static constexpr u32 n2 = -u64(mod) % mod; static_assert(mod < (1 << 30), "invalid, mod >= 2 ^ 30"); static_assert((mod & 1) == 1, "invalid, mod % 2 == 0"); static_assert(r * mod == 1, "this code has bugs."); u32 a; constexpr LazyMontgomeryModInt() : a(0) {} constexpr LazyMontgomeryModInt(const int64_t &b) : a(reduce(u64(b % mod + mod) * n2)){}; static constexpr u32 reduce(const u64 &b) { return (b + u64(u32(b) * u32(-r)) * mod) >> 32; } constexpr mint &operator+=(const mint &b) { if (i32(a += b.a - 2 * mod) < 0) a += 2 * mod; return *this; } constexpr mint &operator-=(const mint &b) { if (i32(a -= b.a) < 0) a += 2 * mod; return *this; } constexpr mint &operator*=(const mint &b) { a = reduce(u64(a) * b.a); return *this; } constexpr mint &operator/=(const mint &b) { *this *= b.inverse(); return *this; } constexpr mint operator+(const mint &b) const { return mint(*this) += b; } constexpr mint operator-(const mint &b) const { return mint(*this) -= b; } constexpr mint operator*(const mint &b) const { return mint(*this) *= b; } constexpr mint operator/(const mint &b) const { return mint(*this) /= b; } constexpr bool operator==(const mint &b) const { return (a >= mod ? a - mod : a) == (b.a >= mod ? b.a - mod : b.a); } constexpr bool operator!=(const mint &b) const { return (a >= mod ? a - mod : a) != (b.a >= mod ? b.a - mod : b.a); } constexpr mint operator-() const { return mint() - mint(*this); } constexpr mint operator+() const { return mint(*this); } constexpr mint pow(u64 n) const { mint ret(1), mul(*this); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } constexpr mint inverse() const { int x = get(), y = mod, u = 1, v = 0, t = 0, tmp = 0; while (y > 0) { t = x / y; x -= t * y, u -= t * v; tmp = x, x = y, y = tmp; tmp = u, u = v, v = tmp; } return mint{u}; } friend ostream &operator<<(ostream &os, const mint &b) { return os << b.get(); } friend istream &operator>>(istream &is, mint &b) { int64_t t; is >> t; b = LazyMontgomeryModInt<mod>(t); return (is); } constexpr u32 get() const { u32 ret = reduce(a); return ret >= mod ? ret - mod : ret; } static constexpr u32 get_mod() { return mod; } }; template<typename T> struct Binomial { vector<T> fact_, inv_, finv_; constexpr Binomial() {} constexpr Binomial(int n) noexcept : fact_(n, 1), inv_(n, 1), finv_(n, 1) { init(n); } constexpr void init(int n) noexcept { constexpr int mod = T::get_mod(); fact_.assign(n, 1), inv_.assign(n, 1), finv_.assign(n, 1); for(int i = 2; i < n; i++){ fact_[i] = fact_[i-1] * i; inv_[i] = -inv_[mod%i] * (mod/i); finv_[i] = finv_[i-1] * inv_[i]; } } constexpr T com(int n, int k) const noexcept { if (n < k || n < 0 || k < 0) return 0; return fact_[n] * finv_[k] * finv_[n-k]; } constexpr T perm(int n, int k) const noexcept { if (n < k || n < 0 || k < 0) return 0; return fact_[n] * finv_[n-k]; } constexpr T fact(int n) const noexcept { if (n < 0) return 0; return fact_[n]; } constexpr T inv(int n) const noexcept { if (n < 0) return 0; return inv_[n]; } constexpr T finv(int n) const noexcept { if (n < 0) return 0; return finv_[n]; } constexpr T com_naive(int n, int k) const noexcept { if (n < 0 || k < 0 || n < k) return 0; T res = T(1); k = min(k, n-k); for (int i = 1; i <= k; i++)res *= (n--) * inv(i); return res; } template <typename I> constexpr T multi(const vector<I> &v) const noexcept { static_assert(is_integral<I>::value); I n = 0; for (auto& x : v) { if (x < 0) return 0; n += x; } T res = fact(n); for (auto &x : v) res *= finv(x); return res; } // [x^k] (1-x)^{-n} = com(n+k-1, k) constexpr T neg(int n, int k) const noexcept { if (n < 0 || k < 0) return 0; return k == 0 ? 1 : com(n+k-1, k); } }; const int mod = 998244353; //const int mod = 1000000007; using mint = LazyMontgomeryModInt<mod>; Binomial<mint> bc(303); // mint dp[303][303][303]; // // int main(){ // ios_base::sync_with_stdio(false); // cin.tie(nullptr); // int n,m,k; in(n,m,k); // dp[m+1][m+1][0] = 1; // rrep(p,1,m+1)rep(i,p+1,m+2)rep(s,n+1){ // rep(t,1,n-s+1) dp[p][i][s+t] += dp[p+1][i][s] * (k >= p ? i : 1) * bc.finv(t); // dp[p][p][s] += dp[p+1][i][s] * (k >= p ? p : 1); // } // mint ans = 0; // rep(i,1,m+2){ // mint r = 1; // rep(j,m+1,k+1) r *= j; // ans += dp[1][i][n] * r; // } // ans *= bc.fact(n); // out(ans); // } mint dp[303][303]; mint f[303][303]; int main(){ ios_base::sync_with_stdio(false); cin.tie(nullptr); int n,m,k; in(n,m,k); dp[m+1][0] = 1; rrep(i,1,m+1)rep(s,1,m+1){ rep(j,i+1,m+2) { mint r = 1; if(i <= k) r *= i; if(i+1 <= k) r *= mint(j).pow(min(k,j-1)-i); dp[i][s] += dp[j][s-1] * r; } } f[0][0] = 1; rep(i,1,m+1)rep(j,n+1) rep(k,1,j+1) f[i][j] += f[i-1][j-k] * bc.finv(k); mint ans = 0; mint r = 1; rep(i,m+1,k+1) r *= i; rep(i,1,m+2)rep(s,m+1){ ans += dp[i][s] * mint(i).pow(min(i-1,k)) * f[m-s][n] * bc.fact(n); } ans *= r; out(ans); }