結果
| 問題 |
No.2513 Power Eraser
|
| コンテスト | |
| ユーザー |
amentorimaru
|
| 提出日時 | 2023-06-14 21:05:47 |
| 言語 | C++17(clang) (17.0.6 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 4,668 ms / 6,000 ms |
| コード長 | 5,093 bytes |
| コンパイル時間 | 5,383 ms |
| コンパイル使用メモリ | 162,060 KB |
| 実行使用メモリ | 64,440 KB |
| 最終ジャッジ日時 | 2024-09-20 16:39:02 |
| 合計ジャッジ時間 | 125,392 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 34 TLE * 5 |
ソースコード
#define ATCODER
#define _USE_MATH_DEFINES
#include<stdio.h>
#include<iostream>
#include<fstream>
#include<algorithm>
#include<vector>
#include<string>
#include <cassert>
#include <numeric>
#include <unordered_map>
#include <unordered_set>
#include <queue>
#include <math.h>
#include <climits>
#include <set>
#include <map>
#include <list>
#include <random>
#include <iterator>
#include <bitset>
#include <chrono>
using namespace std;
using ll = long long;
using ld = long double;
using pll = pair<ll, ll>;
using pdd = pair<ld, ld>;
//template<class T> using pq = priority_queue<T, vector<T>, greater<T>>;
#define FOR(i, a, b) for(ll i=(a); i<(b);i++)
#define REP(i, n) for(ll i=0; i<(n);i++)
#define ROF(i, a, b) for(ll i=(b-1); i>=(a);i--)
#define PER(i, n) for(ll i=n-1; i>=0;i--)
#define REPREP(i,j,a,b) for(ll i=0;i<a;i++)for(ll j=0;j<b;j++)
#define VV(type) vector< vector<type> >
#define VV2(type,n,m,val) vector< vector<type> > val;val.resize(n);for(ll i;i<n;i++)val[i].resize(m)
#define vec(type) vector<type>
#define VEC(type,n,val) vector<type> val;val.resize(n)
#define VL vector<ll>
#define VVL vector< vector<ll> >
#define VP vector< pair<ll,ll> >
#define SZ size()
#define all(i) begin(i),end(i)
#define SORT(i) sort(all(i))
#define BITI(i) (1<<i)
#define BITSET(x,i) x | (ll(1)<<i)
#define BITCUT(x,i) x & ~(ll(1)<<i)
#define EXISTBIT(x,i) (((x>>i) & 1) != 0)
#define ALLBIT(n) (ll(1)<<n-1)
#define TOMAX(n,v) n=n<v?v:n
#define TOMIN(n,v) n=n>v?v:n
#define MP(a,b) make_pair(a,b)
#define DET2(x1,y1,x2,y2) x1*y2-x2*y1
#define DET3(x1,y1,z1,x2,y2,z2,x3,y3,z3) x1*y2*z3+x2*y3*z1+x3*y1*z2-z1*y2*x3-z2*y3*x1-z3*y1*x2
#define INC(a) for(auto& v:a)v++;
#define DEC(a) for(auto& v:a)v--;
#define SQU(x) (x)*(x)
#define L0 ll(0)
#ifdef ATCODER
#include <atcoder/all>
using namespace atcoder;
using mint = modint1000000007;
using mint2 = modint998244353;
#endif
template<typename T = ll>
vector<T> read(size_t n) {
vector<T> ts(n);
for (size_t i = 0; i < n; i++) cin >> ts[i];
return ts;
}
template<typename TV, const ll N> void read_tuple_impl(TV&) {}
template<typename TV, const ll N, typename Head, typename... Tail>
void read_tuple_impl(TV& ts) {
get<N>(ts).emplace_back(*(istream_iterator<Head>(cin)));
read_tuple_impl<TV, N + 1, Tail...>(ts);
}
template<typename... Ts> decltype(auto) read_tuple(size_t n) {
tuple<vector<Ts>...> ts;
for (size_t i = 0; i < n; i++) read_tuple_impl<decltype(ts), 0, Ts...>(ts);
return ts;
}
using val = ll;
using func = ll;
val op(val a, val b) { return a + b; }
val e() { return 0; }
val mp(func f, val a) {
if (f == -1)
return a;
return f;
}
func comp(func f, func g) {
if (f == -1)
return g;
return f;
}
func id() { return -1; }
ll di[4] = { 1,0,-1,0 };
ll dj[4] = { 0,1,0,-1 };
//ll di[4] = { -1,-1,1,1 };
//ll dj[4] = { -1,1,-1,1 };
ll di8[8] = { 0,-1,-1,-1,0,1,1,1 };
ll dj8[8] = { -1,-1,0,1,1,1,0,-1 };
ll n;
VL a;
vector<mint2> rev(vector<mint2>& f, ll mod) {
vector<mint2> res = { mint2(1) / f[0] };
ll t = 1;
while (t < mod) {
t *= 2;
auto m = convolution(f, res);
m = convolution(m, res);
vector<mint2> nres(t);
REP(i, t) {
if (i < res.size())
nres[i] += 2 * res[i];
if (i < m.size())
nres[i] += -m[i];
}
res = nres;
}
return res;
}
vector<mint2> div(vector<mint2>& f, vector<mint2>& g) {
auto rf = f;
auto rg = g;
reverse(all(rf));
reverse(all(rg));
auto q = convolution(rf, rev(rg, f.size() - g.size() + 1));
while (q.size() > f.size() - g.size() + 1) {
q.pop_back();
}
reverse(all(q));
auto gq = convolution(g, q);
auto res = f;
REP(i, res.size()) {
if (i < gq.size()) {
res[i] -= gq[i];
}
}
while (res.back() == 0 && res.size() > 1) {
res.pop_back();
}
return res;
}
mint2 solve3(ll l1, ll l2, ll d) {
ll c = 1;
while (c < d) {
c *= 2;
}
VL a1(d), a2(d);
REP(i, d) {
a1[i] = a[l1 + i];
a2[i] = a[l2 + i];
}
vector<vector<mint2>> f1(c * 2);
vector<vector<mint2>> f2(c * 2);
FOR(i, c, c * 2) {
if (i < c + d) {
f1[i].assign(2, -1);
f1[i][0] = a1[i - c];
f2[i].assign(2, -1);
f2[i][0] = a2[i - c];
}
else {
f1[i].assign(1, 1);
f2[i].assign(1, 1);
}
}
PER(i, c) {
f1[i] = convolution(f1[i * 2], f1[i * 2 + 1]);
f2[i] = convolution(f2[i * 2], f2[i * 2 + 1]);
}
f1[1] = div(f1[1], f2[1]);
FOR(i, 2, 2 * c) {
auto& p = f1[i / 2];
if (f2[i].size() != 1)
f1[i] = div(p, f2[i]);
}
mint2 res = 1;
FOR(i, c, 2 * c) {
res *= f1[i][0];
}
return res;
}
mint2 solve2(ll l, ll r) {
if (l >= r - 1)
return 1;
mint2 res = 1;
ll d = (r - l) / 2;
res *= solve3(l, r - d, d);
res *= solve2(l, r - d);
res *= solve2(l + d, r);
return res;
}
void solve() {
//ifstream file("case.txt"); // ファイルを開く
//streambuf* cinbuf = cin.rdbuf();
//cin.rdbuf(file.rdbuf());
cin >> n;
a = read(n);
mint2 ans = 1;
cout << solve2(0, n).val();
}
int main() {
ll t = 1;
//cin >> t;
while (t--) {
solve();
}
return 0;
}
amentorimaru