結果
問題 | No.2141 Enumeratest |
ユーザー | SnowBeenDiding |
提出日時 | 2022-12-03 20:04:49 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 66 ms / 2,000 ms |
コード長 | 5,005 bytes |
コンパイル時間 | 5,099 ms |
コンパイル使用メモリ | 311,916 KB |
実行使用メモリ | 46,172 KB |
最終ジャッジ日時 | 2024-10-10 23:33:52 |
合計ジャッジ時間 | 8,626 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 59 ms
42,344 KB |
testcase_01 | AC | 59 ms
42,368 KB |
testcase_02 | AC | 60 ms
42,428 KB |
testcase_03 | AC | 60 ms
42,284 KB |
testcase_04 | AC | 66 ms
46,172 KB |
testcase_05 | AC | 66 ms
46,060 KB |
testcase_06 | AC | 59 ms
42,244 KB |
testcase_07 | AC | 60 ms
42,248 KB |
testcase_08 | AC | 59 ms
42,228 KB |
testcase_09 | AC | 60 ms
42,316 KB |
testcase_10 | AC | 59 ms
42,240 KB |
testcase_11 | AC | 60 ms
42,368 KB |
testcase_12 | AC | 60 ms
42,240 KB |
testcase_13 | AC | 60 ms
42,368 KB |
testcase_14 | AC | 60 ms
42,240 KB |
testcase_15 | AC | 60 ms
42,240 KB |
testcase_16 | AC | 59 ms
42,240 KB |
testcase_17 | AC | 64 ms
44,800 KB |
testcase_18 | AC | 64 ms
45,440 KB |
testcase_19 | AC | 66 ms
45,696 KB |
testcase_20 | AC | 65 ms
45,044 KB |
testcase_21 | AC | 66 ms
45,296 KB |
testcase_22 | AC | 63 ms
44,544 KB |
testcase_23 | AC | 62 ms
43,392 KB |
testcase_24 | AC | 61 ms
43,196 KB |
testcase_25 | AC | 60 ms
42,368 KB |
testcase_26 | AC | 65 ms
45,824 KB |
testcase_27 | AC | 65 ms
45,256 KB |
testcase_28 | AC | 66 ms
46,080 KB |
testcase_29 | AC | 64 ms
44,288 KB |
testcase_30 | AC | 66 ms
45,824 KB |
testcase_31 | AC | 63 ms
44,672 KB |
testcase_32 | AC | 66 ms
44,848 KB |
testcase_33 | AC | 64 ms
44,544 KB |
testcase_34 | AC | 64 ms
44,392 KB |
testcase_35 | AC | 59 ms
42,488 KB |
testcase_36 | AC | 66 ms
45,780 KB |
ソースコード
#include <atcoder/all> using namespace atcoder; // using mint = modint1000000007; using mint = modint998244353; // using mint = modint;//mint::set_mod(MOD); // const long long MOD = 1000000007; const long long MOD = 998244353; #include <bits/stdc++.h> #define rep(i, a, b) for (ll i = (ll)(a); i < (ll)(b); i++) #define repeq(i, a, b) for (ll i = (ll)(a); i <= (ll)(b); i++) #define repreq(i, a, b) for (ll i = (ll)(a); i >= (ll)(b); i--) #define each(a, b) for (auto &(a) : (b)) #define endl '\n' // fflush(stdout); #define cYes cout << "Yes" << endl #define cNo cout << "No" << endl #define sortr(v) sort(v, greater<>()) #define pb push_back #define mp make_pair #define mt make_tuple #define tget(a, b) get<b>(a) #define FI first #define SE second #define ALL(v) (v).begin(), (v).end() #define INFLL 3000000000000000100LL #define INF 1000000100 #define PI acos(-1.0L) #define TAU (PI * 2.0L) using namespace std; typedef long long ll; typedef pair<ll, ll> Pll; typedef tuple<ll, ll, ll> Tlll; typedef vector<int> Vi; typedef vector<Vi> VVi; typedef vector<ll> Vl; typedef vector<Vl> VVl; typedef vector<VVl> VVVl; typedef vector<Tlll> VTlll; typedef vector<mint> Vm; typedef vector<Vm> VVm; typedef vector<string> Vs; typedef vector<double> Vd; typedef vector<char> Vc; typedef vector<bool> Vb; typedef vector<Pll> VPll; typedef priority_queue<ll> PQl; typedef priority_queue<ll, vector<ll>, greater<ll>> PQlr; /* print */ template <typename T> ostream &operator<<(ostream &os, const vector<T> &V) { int N = V.size(); if (N == 0) { os << endl; return os; } rep(i, 0, N - 1) { os << V[i] << ' '; } os << V[N - 1] << endl; return os; } template <typename T> ostream &operator<<(ostream &os, const vector<vector<T>> &V) { int N = V.size(); rep(i, 0, N) os << V[i]; return os; } template <typename T, typename S> ostream &operator<<(ostream &os, pair<T, S> const &P) { os << P.FI << ' ' << P.SE; return os; } ostream &operator<<(ostream &os, mint const &M) { os << M.val(); return os; } /* useful */ template <typename T> void Vin(vector<T> &v) { int n = v.size(); rep(i, 0, n) cin >> v[i]; } template <typename T> int SMALLER(vector<T> &a, T x) { return lower_bound(a.begin(), a.end(), x) - a.begin(); } template <typename T> int orSMALLER(vector<T> &a, T x) { return upper_bound(a.begin(), a.end(), x) - a.begin(); } template <typename T> int BIGGER(vector<T> &a, T x) { return a.size() - orSMALLER(a, x); } template <typename T> int orBIGGER(vector<T> &a, T x) { return a.size() - SMALLER(a, x); } template <typename T> int COUNT(vector<T> &a, T x) { return upper_bound(ALL(a), x) - lower_bound(ALL(a), x); } template <typename T, typename S> bool chmax(T &a, S b) { if (a < b) { a = b; return 1; } return 0; } template <typename T, typename S> bool chmin(T &a, S b) { if (a > b) { a = b; return 1; } return 0; } template <typename T> void press(T &v) { v.erase(unique(ALL(v)), v.end()); } template <typename T> vector<int> zip(vector<T> b) { pair<T, int> p[b.size() + 10]; int a = b.size(); vector<int> l(a); for (int i = 0; i < a; i++) p[i] = mp(b[i], i); sort(p, p + a); int w = 0; for (int i = 0; i < a; i++) { if (i && p[i].first != p[i - 1].first) w++; l[p[i].second] = w; } return l; } template <typename T> vector<T> vis(vector<T> &v) { vector<T> S(v.size() + 1); rep(i, 1, S.size()) S[i] += v[i - 1] + S[i - 1]; return S; } ll dem(ll a, ll b) { return ((a + b - 1) / (b)); } ll dtoll(double d, int g) { return round(d * pow(10, g)); } const double EPS = 1e-10; void init() { cin.tie(0); cout.tie(0); ios::sync_with_stdio(0); cout << fixed << setprecision(12); } // do {} while (next_permutation(ALL(vec))); /********************************** START **********************************/ struct Comb { vector<mint> fact, ifact; int MAX_COM; Comb() {} Comb(int n) { MAX_COM = n; // ここでMAX入力を調整 init(MOD, MAX_COM); } void init(long long MOD, long long MAX_COM) { int n = MAX_COM; assert(n < MOD); fact = vector<mint>(n + 1); ifact = vector<mint>(n + 1); fact[0] = 1; for (int i = 1; i <= n; ++i) fact[i] = fact[i - 1] * i; ifact[n] = fact[n].inv(); for (int i = n; i >= 1; --i) ifact[i - 1] = ifact[i] * i; } mint operator()(long long n, long long k) { if (k < 0 || k > n) return 0; return fact[n] * ifact[k] * ifact[n - k]; } }; Comb comb(5000010); void sol() { ll n, m; cin >> n >> m; mint ans = 1; ll nok = m; Vi ct(n, m / n); ll am = m % n; rep(i, 0, am) ct[i]++; rep(i, 0, n) { ans *= comb(nok, ct[i]); nok -= ct[i]; } cout << ans << endl; } int main() { init(); int q = 1; // cin >> q; while (q--) sol(); return 0; }