結果

問題 No.1289 RNG and OR
ユーザー heno239heno239
提出日時 2020-11-16 20:23:08
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 346 ms / 2,000 ms
コード長 3,615 bytes
コンパイル時間 1,873 ms
コンパイル使用メモリ 126,224 KB
実行使用メモリ 10,308 KB
最終ジャッジ日時 2024-07-23 01:41:59
合計ジャッジ時間 3,380 ms
ジャッジサーバーID
(参考情報)
judge5 / judge4
このコードへのチャレンジ
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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 5 ms
7,492 KB
testcase_01 AC 5 ms
7,616 KB
testcase_02 AC 5 ms
7,620 KB
testcase_03 AC 5 ms
7,496 KB
testcase_04 AC 4 ms
7,492 KB
testcase_05 AC 5 ms
7,492 KB
testcase_06 AC 5 ms
7,616 KB
testcase_07 AC 4 ms
7,620 KB
testcase_08 AC 5 ms
7,620 KB
testcase_09 AC 5 ms
7,488 KB
testcase_10 AC 5 ms
7,492 KB
testcase_11 AC 5 ms
7,492 KB
testcase_12 AC 6 ms
7,492 KB
testcase_13 AC 7 ms
7,620 KB
testcase_14 AC 9 ms
7,492 KB
testcase_15 AC 14 ms
7,620 KB
testcase_16 AC 25 ms
7,620 KB
testcase_17 AC 43 ms
7,620 KB
testcase_18 AC 72 ms
8,132 KB
testcase_19 AC 163 ms
8,776 KB
testcase_20 AC 346 ms
10,308 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#pragma GCC optimize("Ofast")
#pragma GCC target ("sse4")

#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<unordered_set>
#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 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 << 18;
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];
}



void solve() {
    int n; cin >> n;
    vector<int> a(1<<n);
    rep(i, (1 << n))cin >> a[i];
    ll sum = 0;
    rep(i, (1 << n))sum += a[i];
    vector<modint> p(1 << n);
    rep(i, (1 << n)) {
        p[i] = (modint)a[i] / (modint)sum;
    }
    rep(i, n)rep(j, (1 << n))if (j & (1 << i))p[j] += p[j ^ (1 << i)];
    //rep(i, (1 << n))cout << p[i] << "\n";
    modint ans = 0;
    rep1(i, (1 << n) - 1) {
        modint pro = (modint)1 - p[(1<<n)-1-i];
        //cout << pro << "\n";
        int id = 0;
        rep(j, n)if (i & (1 << j))id ^= 1;
        if (id)ans += (modint)1 / pro;
        else ans -= (modint)1 / pro;
    }
    cout << ans << "\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;
}
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