結果
| 問題 | No.1145 Sums of Powers |
| コンテスト | |
| ユーザー |
heno239
|
| 提出日時 | 2020-08-28 20:48:09 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 6,562 bytes |
| コンパイル時間 | 1,704 ms |
| コンパイル使用メモリ | 131,140 KB |
| 実行使用メモリ | 89,316 KB |
| 最終ジャッジ日時 | 2024-11-13 23:44:07 |
| 合計ジャッジ時間 | 11,796 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 3 TLE * 3 |
ソースコード
#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<utility>
#include<cassert>
#include<complex>
#include<numeric>
#include<array>
using namespace std;
//#define int long long
typedef long long ll;
typedef unsigned long long ul;
typedef unsigned int ui;
constexpr ll mod = 998244353;
const ll INF = mod * mod;
typedef pair<int, int>P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
#define all(v) (v).begin(),(v).end()
typedef pair<ll, ll> LP;
typedef long double ld;
typedef pair<ld, ld> LDP;
const ld eps = 1e-12;
const ld pi = acosl(-1.0);
ll mod_pow(ll x, ll n, ll m=mod) {
ll res = 1;
while (n) {
if (n & 1)res = res * x % m;
x = x * x % m; n >>= 1;
}
return res;
}
struct modint {
ll n;
modint() :n(0) { ; }
modint(ll m) :n(m) {
if (n >= mod)n %= mod;
else if (n < 0)n = (n % mod + mod) % mod;
}
operator int() { return n; }
};
bool operator==(modint a, modint b) { return a.n == b.n; }
modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; }
modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; }
modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; }
modint operator+(modint a, modint b) { return a += b; }
modint operator-(modint a, modint b) { return a -= b; }
modint operator*(modint a, modint b) { return a *= b; }
modint operator^(modint a, ll n) {
if (n == 0)return modint(1);
modint res = (a * a) ^ (n / 2);
if (n % 2)res = res * a;
return res;
}
ll inv(ll a, ll p) {
return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p);
}
modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); }
const int max_n = 1 << 21;
modint fact[max_n], factinv[max_n];
void init_f() {
fact[0] = modint(1);
for (int i = 0; i < max_n - 1; i++) {
fact[i + 1] = fact[i] * modint(i + 1);
}
factinv[max_n - 1] = modint(1) / fact[max_n - 1];
for (int i = max_n - 2; i >= 0; i--) {
factinv[i] = factinv[i + 1] * modint(i + 1);
}
}
modint comb(int a, int b) {
if (a < 0 || b < 0 || a < b)return 0;
return fact[a] * factinv[b] * factinv[a - b];
}
modint mod_inverse(modint a) {
return mod_pow(a, mod - 2);
}
modint root[24], invroot[24];
void init() {
rep(i, 24) {
int n = (1 << i);
root[i] = mod_pow(3, (mod - 1) / n);
invroot[i] = mod_inverse(root[i]);
}
}
typedef vector <modint> poly;
poly dft(poly f, bool inverse = false) {
int n = f.size(); int i, j, k;
//bit左右反転
for (i = 0, j = 1; j < n - 1; j++) {
for (k = n >> 1; k > (i ^= k); k >>= 1);
if (i > j)swap(f[i], f[j]);
}
for (int j = 1; (1 << j) <= n; j++) {
int m = 1 << j;
modint zeta = root[j];
if (inverse)zeta = invroot[j];
for (i = 0; i < n; i += m) {
modint powzeta = 1;
for (k = i; k < i + m / 2; k++) {
ll t1 = f[k], t2 = powzeta * f[k + m / 2];
f[k] = t1 + t2;
f[k + m / 2] = t1 - t2;
(powzeta *= zeta);
}
}
}
if (inverse) {
modint rv = mod_inverse(n);
for (i = 0; i < n; i++) {
(f[i] *= rv);
}
}
return f;
}
poly multiply(poly g, poly h) {
int n = 1;
int pi = 0, qi = 0;
rep(i, g.size())if (g[i])pi = i;
rep(i, h.size())if (h[i])qi = i;
int sz = pi + qi + 2;
while (n < sz)n *= 2;
g.resize(n); h.resize(n);
/*while (g.size() < n) {
g.push_back(0);
}
while (h.size() < n) {
h.push_back(0);
}*/
poly gg = dft(g);
poly hh = dft(h);
poly ff; ff.resize(n);
rep(i, n) {
ff[i] = gg[i] * hh[i];
}
return dft(ff, true);
}
struct FormalPowerSeries :vector<modint> {
using vector<modint>::vector;
using fps = FormalPowerSeries;
void shrink() {
while (this->size() && this->back() == (modint)0)this->pop_back();
}
fps operator+(const fps& r)const { return fps(*this) += r; }
fps operator+(const modint& v)const { return fps(*this) += v; }
fps operator-(const fps& r)const { return fps(*this) -= r; }
fps operator-(const modint& v)const { return fps(*this) -= v; }
fps operator*(const fps& r)const { return fps(*this) *= r; }
fps operator*(const modint& v)const { return fps(*this) *= v; }
fps& operator+=(const fps& r) {
if (r.size() > this->size())this->resize(r.size());
rep(i, r.size())(*this)[i] += r[i];
shrink();
return *this;
}
fps& operator+=(const modint& v) {
if (this->empty())this->resize(1);
(*this)[0] += v;
shrink();
return *this;
}
fps& operator-=(const fps& r) {
if (r.size() > this->size())this->resize(r.size());
rep(i, r.size())(*this)[i] -= r[i];
shrink();
return *this;
}
fps& operator-=(const modint& v) {
if (this->empty())this->resize(1);
(*this)[0] -= v;
shrink();
return *this;
}
fps& operator*=(const fps& r) {
if (this->empty() || r.empty())this->clear();
else {
poly ret = multiply(*this, r);
*this = fps(all(ret));
}
return *this;
}
fps& operator*=(const modint& v) {
for (auto& x : (*this))x *= v;
shrink();
return *this;
}
fps operator-()const {
fps ret = *this;
for (auto& v : ret)v = -v;
return ret;
}
fps pre(int sz)const {
fps ret(this->begin(), this->begin() + min((int)this->size(), sz));
ret.shrink();
return ret;
}
fps inv(int deg) {
const int n = this->size();
if (deg == -1)deg = n;
fps ret({ (modint)1 / (*this)[0] });
for (int i = 1; i < deg; i <<= 1) {
ret = (ret + ret - ret * ret * pre(i<<1)).pre(i << 1);
}
ret = ret.pre(deg);
ret.shrink();
return ret;
}
};
using fps = FormalPowerSeries;
struct pfps {
fps a,b;
};
pfps operator+(const pfps& a, const pfps& b) {
return { a.a * b.b + a.b * b.a,a.b * b.b };
}
void solve() {
int n; cin >> n;
int m; cin >> m;
vector<pfps> v(n);
rep(i, n) {
int a; cin >> a;
v[i] = { {1},{1,-a} };
}
while (v.size() > 1) {
vector<pfps> nex;
int len = v.size();
rep(j, len / 2) {
nex.push_back(v[2 * j] + v[2 * j + 1]);
}
if (len % 2)nex.push_back(v.back());
swap(nex, v);
}
fps ans = v[0].a * (v[0].b).inv(m + 1);
rep1(i, m) {
if (i>1)cout << " ";
cout << ans[i];
}
cout << "\n";
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
//cout << fixed << setprecision(15);
init_f();
init();
//expr();
//int t; cin >> t; rep(i, t)
solve();
return 0;
}
heno239