結果
| 問題 |
No.1068 #いろいろな色 / Red and Blue and more various colors (Hard)
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-05-30 03:21:04 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,929 bytes |
| コンパイル時間 | 2,461 ms |
| コンパイル使用メモリ | 202,412 KB |
| 最終ジャッジ日時 | 2025-01-10 19:06:49 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 13 WA * 16 |
ソースコード
#include <bits/stdc++.h> // clang-format off
#define int long long
using Int = long long;
#define REP_(i, a_, b_, a, b, ...) for (Int i = (a), lim##i = (b); i < lim##i; i++)
#define REP(i, ...) REP_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__)
struct SetupIO { SetupIO() { std::cin.tie(nullptr), std::ios::sync_with_stdio(false), std::cout << std::fixed << std::setprecision(13); } } setup_io;
#ifndef dump
#define dump(...)
#endif // clang-format on
/**
* author: knshnb
* created: Sat May 30 03:00:52 JST 2020
**/
using namespace std;
template <int mod> struct NumberTheoreticTransform {
vector<int> rev, rts;
int base, max_base, root;
NumberTheoreticTransform() : base(1), rev{0, 1}, rts{0, 1} {
assert(mod >= 3 && mod % 2 == 1);
auto tmp = mod - 1;
max_base = 0;
while (tmp % 2 == 0) tmp >>= 1, max_base++;
root = 2;
while (mod_pow(root, (mod - 1) >> 1) == 1) ++root;
assert(mod_pow(root, mod - 1) == 1);
root = mod_pow(root, (mod - 1) >> max_base);
}
inline int mod_pow(int x, int n) {
int ret = 1;
while (n > 0) {
if (n & 1) ret = mul(ret, x);
x = mul(x, x);
n >>= 1;
}
return ret;
}
inline int inverse(int x) { return mod_pow(x, mod - 2); }
inline unsigned add(unsigned x, unsigned y) {
x += y;
if (x >= mod) x -= mod;
return x;
}
inline unsigned mul(unsigned a, unsigned b) { return 1ull * a * b % (unsigned long long)mod; }
void ensure_base(int nbase) {
if (nbase <= base) return;
rev.resize(1 << nbase);
rts.resize(1 << nbase);
for (int i = 0; i < (1 << nbase); i++) {
rev[i] = (rev[i >> 1] >> 1) + ((i & 1) << (nbase - 1));
}
assert(nbase <= max_base);
while (base < nbase) {
int z = mod_pow(root, 1 << (max_base - 1 - base));
for (int i = 1 << (base - 1); i < (1 << base); i++) {
rts[i << 1] = rts[i];
rts[(i << 1) + 1] = mul(rts[i], z);
}
++base;
}
}
void ntt(vector<int> &a) {
const int n = (int)a.size();
assert((n & (n - 1)) == 0);
int zeros = __builtin_ctz(n);
ensure_base(zeros);
int shift = base - zeros;
for (int i = 0; i < n; i++) {
if (i < (rev[i] >> shift)) {
swap(a[i], a[rev[i] >> shift]);
}
}
for (int k = 1; k < n; k <<= 1) {
for (int i = 0; i < n; i += 2 * k) {
for (int j = 0; j < k; j++) {
int z = mul(a[i + j + k], rts[j + k]);
a[i + j + k] = add(a[i + j], mod - z);
a[i + j] = add(a[i + j], z);
}
}
}
}
vector<int> multiply(vector<int> a, vector<int> b) {
int need = a.size() + b.size() - 1;
int nbase = 1;
while ((1 << nbase) < need) nbase++;
ensure_base(nbase);
int sz = 1 << nbase;
a.resize(sz, 0);
b.resize(sz, 0);
ntt(a);
ntt(b);
int inv_sz = inverse(sz);
for (int i = 0; i < sz; i++) {
a[i] = mul(a[i], mul(b[i], inv_sz));
}
reverse(a.begin() + 1, a.end());
ntt(a);
a.resize(need);
return a;
}
};
const Int MOD = 998244353;
signed main() {
NumberTheoreticTransform<MOD> ntt;
Int n, Q;
std::cin >> n >> Q;
std::vector<Int> a(n);
REP(i, n) std::cin >> a[i];
auto dfs = [&](auto&& f, Int l, Int r) -> std::vector<int> {
if (r - l == 1) return {a[l] - 1, 1};
Int mid = (l + r) / 2;
return ntt.multiply(f(f, l, mid), f(f, mid, r));
};
std::vector<int> ans = dfs(dfs, 0, n);
REP(q, Q) {
Int b;
std::cin >> b;
std::cout << ans[b] << "\n";
}
}