結果
問題 | No.1939 Numbered Colorful Balls |
ユーザー | shobonvip |
提出日時 | 2023-05-30 00:29:06 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 170 ms / 2,000 ms |
コード長 | 4,647 bytes |
コンパイル時間 | 4,755 ms |
コンパイル使用メモリ | 281,132 KB |
実行使用メモリ | 19,012 KB |
最終ジャッジ日時 | 2024-06-08 19:48:28 |
合計ジャッジ時間 | 8,526 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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 | 170 ms
19,012 KB |
testcase_01 | AC | 20 ms
13,184 KB |
testcase_02 | AC | 169 ms
18,816 KB |
testcase_03 | AC | 166 ms
18,888 KB |
testcase_04 | AC | 19 ms
13,184 KB |
testcase_05 | AC | 166 ms
18,884 KB |
testcase_06 | AC | 170 ms
18,876 KB |
testcase_07 | AC | 54 ms
14,416 KB |
testcase_08 | AC | 36 ms
13,628 KB |
testcase_09 | AC | 169 ms
18,640 KB |
testcase_10 | AC | 21 ms
13,184 KB |
testcase_11 | AC | 91 ms
15,980 KB |
testcase_12 | AC | 27 ms
13,568 KB |
testcase_13 | AC | 20 ms
13,184 KB |
testcase_14 | AC | 51 ms
14,348 KB |
testcase_15 | AC | 36 ms
13,696 KB |
testcase_16 | AC | 90 ms
16,244 KB |
testcase_17 | AC | 94 ms
16,028 KB |
testcase_18 | AC | 56 ms
14,524 KB |
testcase_19 | AC | 170 ms
18,488 KB |
testcase_20 | AC | 54 ms
14,492 KB |
testcase_21 | AC | 170 ms
18,516 KB |
testcase_22 | AC | 27 ms
13,568 KB |
testcase_23 | AC | 90 ms
16,132 KB |
testcase_24 | AC | 168 ms
18,516 KB |
testcase_25 | AC | 93 ms
16,048 KB |
testcase_26 | AC | 170 ms
18,880 KB |
testcase_27 | AC | 20 ms
13,184 KB |
testcase_28 | AC | 20 ms
13,056 KB |
testcase_29 | AC | 94 ms
16,104 KB |
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> using namespace std; using namespace atcoder; typedef modint998244353 mint; typedef long long ll; //defmodfact const int COMinitMAX = 1234567; mint fact[COMinitMAX+1], factinv[COMinitMAX+1]; void modfact(){ fact[0] = 1; for (int i=1; i<=COMinitMAX; i++){ fact[i] = fact[i-1] * i; } factinv[COMinitMAX] = fact[COMinitMAX].inv(); for (int i=COMinitMAX-1; i>=0; i--){ factinv[i] = factinv[i+1] * (i+1); } } mint cmb(int a, int b){ if (a<b || b<0) return mint(0); return fact[a]*factinv[b]*factinv[a-b]; } //-------- vector<mint> poly_inv(vector<mint> &a, int M = -314159265){ if (M == -314159265) M = (int)a.size(); else if (M <= 0) return {}; int n = a.size(); mint r = a[0].pow((ll)(mint::mod())-2); int m = 1; vector<mint> res = {r}; while (m < M){ vector<mint> f = a; f.resize(2 * m); vector<mint> g = res; g.resize(2 * m); internal::butterfly(f); internal::butterfly(g); for (int i=0; i<2*m; i++){ f[i] = f[i] * g[i]; } internal::butterfly_inv(f); for (int i=0; i<m; i++){ f[i] = f[i + m]; } for (int i=0; i<m; i++){ f[i + m] = 0; } internal::butterfly(f); for (int i=0; i<2*m; i++){ f[i] = f[i] * g[i]; } internal::butterfly_inv(f); mint iz = mint(2*m).inv(); iz = -iz * iz; for (int i=0; i<m; i++){ f[i] = f[i] * iz; } res.insert(res.end(), f.begin(), f.begin()+m); m <<= 1; } res.resize(M); return res; } vector<mint> poly_log(vector<mint> &a, int M = -314159265){ if (M == -314159265) M = (int)a.size(); else if (M <= 0) return {}; int n = a.size(); if (n == 1) return vector<mint>(M, 0); vector<mint> b(n-1); for (int i=0; i<n-1; i++){ b[i] = a[i+1] * (i+1); } vector<mint> t = convolution<mint>(b, poly_inv(a, M)); vector<mint> ret(M); for (int i=0; i<M-1; i++){ ret[i+1] = t[i] * factinv[i+1] * fact[i]; } return ret; } vector<mint> poly_exp(vector<mint> &a, int M = -314159265){ if (M == -314159265) M = (int)a.size(); else if (M <= 0) return {}; int n = a.size(); int m = 1; vector<mint> res = {1}; while (m < M){ vector<mint> f(2*m); for (int i=0; i<min(n, 2*m); i++) f[i] = a[i]; vector<mint> v = poly_log(res, 2*m); vector<mint> w(2*m); for (int i=0; i<2*m; i++) w[i] = f[i] - v[i]; w[0] += 1; vector<mint> g = convolution<mint>(res, w); res.insert(res.end(), g.begin()+m, g.begin()+2*m); m <<= 1; } res.resize(M); return res; } vector<mint> poly_pow_nonzero(vector<mint> &a, ll m, ll l){ int n = a.size(); mint bais = a[0].pow(m); mint invs; if (a[0].val() == 0) invs = 0; else invs = a[0].inv(); vector<mint> r(n); for (int i=0; i<n; i++) r[i] = a[i] * invs; r = poly_log(r, l); for (int i=0; i<l; i++) r[i] = r[i] * m; r = poly_exp(r, l); for (int i=0; i<l; i++) r[i] = r[i] * bais; return r; } vector<mint> poly_pow(vector<mint> &a, ll m, ll l){ int n = a.size(); int ind = 0; for (int i=0; i<n; i++){ if (a[i].val() != 0){ ind = i; break; } } ll g = min(m, (ll)3141592653); if (g*ind >= l){ return vector<mint>(l, 0); } vector<mint> ret(g*ind); vector<mint> b(n-ind); for (int i=0; i<n-ind; i++) b[i] = a[i+ind]; vector<mint> tmp; if (l-g*ind > 0) tmp = poly_pow_nonzero(b, m, l-g*ind); else tmp = {}; ret.insert(ret.end(), tmp.begin(), tmp.end()); return ret; } int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } vector<mint> multi_eval(vector<mint> x, vector<mint> a){ int n = x.size(); int siz = 1 << ceil_pow2(n); vector<vector<mint>> g(2*siz, vector<mint>{1}); for (int i=0; i<n; i++) g[i + siz] = {-x[i], 1}; for (int i=siz-1; i>0; i--) g[i] = convolution(g[2*i], g[2*i+1]); vector<mint> f; for (int i=1; i<2*siz; i++){ if (i==1) f = a; else f = g[i>>1]; int fs = f.size(), gs = g[i].size(); int m = fs - gs + 1; vector<mint> v = {}, w = {}; if (m > 0){ vector<mint> ft(m); for (int j=0; j<m; j++) ft[j] = f[fs-1-j]; vector<mint> gt(gs); for (int j=0; j<gs; j++) gt[j] = g[i][gs-1-j]; v = convolution(ft, poly_inv(gt, m)); v.resize(m); reverse(v.begin(), v.end()); w = convolution(v, g[i]); } g[i] = f; for (int j=0; j<w.size(); j++){ g[i][j] -= w[j]; } while (g[i].size() > 1 && g[i][g[i].size() - 1] == 0){ g[i].pop_back(); } } vector<mint> ret(n); for (int i=0; i<n; i++){ ret[i] = g[i+siz][0]; } return ret; } int main(){ modfact(); int n, m; cin >> n >> m; vector<int> l(m); vector<mint> f(n+1); for (int i=0; i<m; i++){ cin >> l[i]; f[l[i]]++; } f[0]++; vector<mint> g = poly_pow(f, n+1, n+1); mint ans = g[n] * mint(n+1).inv(); cout << ans.val() << endl; }