結果
| 問題 |
No.1066 #いろいろな色 / Red and Blue and more various colors (Easy)
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-05-30 13:56:59 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 141 ms / 2,000 ms |
| コード長 | 3,476 bytes |
| コンパイル時間 | 2,633 ms |
| コンパイル使用メモリ | 198,448 KB |
| 最終ジャッジ日時 | 2025-01-10 19:21:07 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 24 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
template <class T> inline bool chmax(T &a, T b) {
if(a < b) {
a = b;
return 1;
}
return 0;
}
template <class T> inline bool chmin(T &a, T b) {
if(a > b) {
a = b;
return 1;
}
return 0;
}
void print() { cout << "\n"; }
template <class T> void print(const T &x) { cout << x << "\n"; }
template <class T, class... Args> void print(const T &x, const Args &... args) {
cout << x << " ";
print(args...);
}
template <class T> void printVector(const vector<T> &v) {
for(const T &x : v) {
cout << x << " ";
}
cout << "\n";
}
using ll = long long;
#define ALL(v) (v).begin(), (v).end()
#define RALL(v) (v).rbegin(), (v).rend()
const double EPS = 1e-7;
const int INF = 1 << 30;
const ll LLINF = 1LL << 60;
const double PI = acos(-1);
constexpr int MOD = 998244353;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
//-------------------------------------
template <int mod> struct ModInt {
int x;
ModInt() : x(0) {}
ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
ModInt &operator+=(const ModInt &p) {
if((x += p.x) >= mod)
x -= mod;
return *this;
}
ModInt &operator-=(const ModInt &p) {
if((x += mod - p.x) >= mod)
x -= mod;
return *this;
}
ModInt &operator*=(const ModInt &p) {
x = (int)(1LL * x * p.x % mod);
return *this;
}
ModInt &operator/=(const ModInt &p) {
*this *= p.inverse();
return *this;
}
ModInt operator-() const { return ModInt(-x); }
ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }
ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }
ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }
ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }
bool operator==(const ModInt &p) const { return x == p.x; }
bool operator!=(const ModInt &p) const { return x != p.x; }
ModInt inverse() const {
int a = x, b = mod, u = 1, v = 0, t;
while(b > 0) {
t = a / b;
swap(a -= t * b, b);
swap(u -= t * v, v);
}
return ModInt(u);
}
ModInt pow(int64_t n) const {
ModInt ret(1), mul(x);
while(n > 0) {
if(n & 1)
ret *= mul;
mul *= mul;
n >>= 1;
}
return ret;
}
friend ostream &operator<<(ostream &os, const ModInt &p) {
return os << p.x;
}
friend istream &operator>>(istream &is, ModInt &a) {
int64_t t;
is >> t;
a = ModInt<mod>(t);
return (is);
}
static int get_mod() { return mod; }
};
using mint = ModInt<MOD>;
int main() {
cin.tie(0);
ios::sync_with_stdio(false);
int n, q;
cin >> n >> q;
vector<mint> a(n);
for(int i = 0; i < n; i++) {
cin >> a[i];
}
vector<vector<mint>> dp(2, vector<mint>(n + 1, 0));
dp[0][0] = 1;
for(int i = 0; i < n; i++) {
for(int j = 0; j <= n; j++) {
dp[(i + 1) & 1][j] += dp[i & 1][j] * (a[i] - 1);
if(j + 1 <= n) {
dp[(i + 1) & 1][j + 1] += dp[i & 1][j];
}
}
dp[i & 1].assign(n + 1, 0);
}
while(q--) {
int b;
cin >> b;
print(dp[n & 1][b]);
}
}