結果

問題 No.2279 OR Insertion
ユーザー Ujjwal RanaUjjwal Rana
提出日時 2023-04-21 23:04:10
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 826 ms / 2,000 ms
コード長 4,170 bytes
コンパイル時間 4,031 ms
コンパイル使用メモリ 253,724 KB
実行使用メモリ 269,312 KB
最終ジャッジ日時 2024-11-15 04:22:48
合計ジャッジ時間 25,410 ms
ジャッジサーバーID
(参考情報)
judge1 / judge2
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 40 ms
19,200 KB
testcase_01 AC 42 ms
19,584 KB
testcase_02 AC 129 ms
59,392 KB
testcase_03 AC 69 ms
39,040 KB
testcase_04 AC 659 ms
256,896 KB
testcase_05 AC 48 ms
25,984 KB
testcase_06 AC 296 ms
128,256 KB
testcase_07 AC 325 ms
136,960 KB
testcase_08 AC 119 ms
61,312 KB
testcase_09 AC 399 ms
171,904 KB
testcase_10 AC 654 ms
253,568 KB
testcase_11 AC 103 ms
53,504 KB
testcase_12 AC 533 ms
218,240 KB
testcase_13 AC 62 ms
34,560 KB
testcase_14 AC 68 ms
37,888 KB
testcase_15 AC 351 ms
147,328 KB
testcase_16 AC 45 ms
23,168 KB
testcase_17 AC 293 ms
125,568 KB
testcase_18 AC 457 ms
194,048 KB
testcase_19 AC 595 ms
241,152 KB
testcase_20 AC 325 ms
139,136 KB
testcase_21 AC 247 ms
108,416 KB
testcase_22 AC 41 ms
19,200 KB
testcase_23 AC 41 ms
19,328 KB
testcase_24 AC 41 ms
19,200 KB
testcase_25 AC 40 ms
19,072 KB
testcase_26 AC 41 ms
19,200 KB
testcase_27 AC 41 ms
19,328 KB
testcase_28 AC 41 ms
19,328 KB
testcase_29 AC 41 ms
19,200 KB
testcase_30 AC 41 ms
19,072 KB
testcase_31 AC 42 ms
19,072 KB
testcase_32 AC 737 ms
269,016 KB
testcase_33 AC 753 ms
269,312 KB
testcase_34 AC 747 ms
269,184 KB
testcase_35 AC 760 ms
269,072 KB
testcase_36 AC 753 ms
269,056 KB
testcase_37 AC 752 ms
269,028 KB
testcase_38 AC 747 ms
269,312 KB
testcase_39 AC 748 ms
269,004 KB
testcase_40 AC 757 ms
269,128 KB
testcase_41 AC 787 ms
269,124 KB
testcase_42 AC 805 ms
269,152 KB
testcase_43 AC 826 ms
269,312 KB
testcase_44 AC 789 ms
269,268 KB
testcase_45 AC 732 ms
269,208 KB
testcase_46 AC 738 ms
269,296 KB
testcase_47 AC 707 ms
269,184 KB
testcase_48 AC 787 ms
269,008 KB
testcase_49 AC 693 ms
269,056 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 target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
#define io ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL) 
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define endl '\n'
typedef long long ll;
// #define mod1 (ll)1000000007
#define mod2 (ll)998244353
#define pll pair<ll,ll>
typedef long double lb;
typedef tree<
pair<ll, ll>,
null_type,
less<pair<ll, ll>>,
rb_tree_tag,
tree_order_statistics_node_update> ordered_set;
#define eps (lb)(1e-9)
struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};
// Operator overloads
template<typename T1, typename T2> // cin >> pair<T1, T2>
istream& operator>>(istream &istream, pair<T1, T2> &p) { return (istream >> p.first >> p.second); }

template<typename T> // cin >> vector<T>
istream& operator>>(istream &istream, vector<T> &v)
{
    for (auto &it : v)
        cin >> it;
    return istream;
}

template<typename T1, typename T2> // cout << pair<T1, T2>
ostream& operator<<(ostream &ostream, const pair<T1, T2> &p) { return (ostream << p.first << " " << p.second); }
template<typename T> // cout << vector<T>
ostream& operator<<(ostream &ostream, const vector<T> &c) { for (auto &it : c) cout << it << " "; return ostream; }

// Utility functions
template <typename T>
void print(T &&t)  { cout << t << "\n"; }
template <typename T, typename... Args>
void print(T &&t, Args &&... args)
{
    cout << t << " ";
    print(forward<Args>(args)...);
}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
ll random(ll p){ // gives random number in [0,p]

 return uniform_int_distribution<ll>(0, p)(rng);
}
ll n;
vector<ll>v;
ll mod=mod2;
ll mod1=mod2;
ll dp[4000][4000];
ll sum[4000][4000];
ll pwr[5000];
ll power(ll a, ll b, ll c=mod1){
     if(a==0){
         return 0;}
     else if(b==0||a==1){
         return 1;}
     ll p=power(a,b/2,c);
     p*=p; p%=c;
     if(b%2){p*=a;} p%=c;
     return p;}
ll modinv(ll a, ll c=mod1){
     return power(a,c-2,c);
}
const ll MAXN =1000000;
ll fac[MAXN+1];
ll invfac[MAXN+1];
void factorial(ll mod=mod1){
    fac[0]=1;
    for(ll i(1);i<=MAXN;++i){fac[i]=i*fac[i-1]; fac[i]%=mod;}
    invfac[MAXN]=modinv(fac[MAXN],mod);
    for(ll i(MAXN-1);i>-1;--i)
    {
        invfac[i]=(i+1ll)*invfac[i+1];
        invfac[i]%=mod;
    }
    for(ll i(0);i<5000;++i){
        pwr[i]=power(2,i);
    }
}
ll C(ll n,ll r,ll mod=mod1){
    if(n<0||r<0||r>n){return 0;}
    ll p=fac[n]; ll q=invfac[n-r]*invfac[r];  q%=mod;
    p*=q; p%=mod;
    return p;
}
void pre(){
    for(ll j(0);j<n;++j){
        ll rs=0;
        for(ll i(0);i<n;++i){
            if(j>i){
                dp[i][j]=0;
            }
            else if(j==i){
                dp[i][j]=(v[0]==1);
            }
            else if(v[i-j]==0){
                dp[i][j]=sum[i-1][j];
            }
            else{
                dp[i][j]=pwr[i-j];
                if(j>0){
                    dp[i][j]+=(sum[i-1][j]-sum[i-j-1][j]);
                }
            }
            rs+=dp[i][j];
            rs%=mod;
            sum[i][j]=rs;
        }
    }
}
void solve();
int main() {
io;
ll t=1,n=1;
// cin>>t;
factorial();
while (t--){
     solve();
    }
     return 0;
}
void solve(){
    cin>>n;
    v.resize(n);
    for(ll i(0);i<n;++i){
        char p; cin>>p;
        v[i]=p-'0';
    }
    pre();
    ll ans=0;
    for(ll i(0);i<n;++i){
        ll c=power(2,i);
        ans+=c*dp[n-1][i];
        ans%=mod;
    }
    cout<<ans<<endl;




}
// Do not get stuck on a single approach for long, think of multiple ways
0