結果
問題 | No.2019 Digits Filling for All Substrings |
ユーザー |
|
提出日時 | 2022-07-22 23:07:45 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 18 ms / 2,000 ms |
コード長 | 2,583 bytes |
コンパイル時間 | 3,206 ms |
コンパイル使用メモリ | 181,668 KB |
最終ジャッジ日時 | 2025-01-30 12:59:33 |
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 * 4 |
other | AC * 30 |
ソースコード
#include <iostream>#include <vector>#include <string>#include <map>#include <set>#include <queue>#include <algorithm>#include <cmath>#include <iomanip>#include <random>#include <stdio.h>#include <fstream>#include <functional>#include <cassert>#include <unordered_map>#include <bitset>#include <atcoder/all>using namespace std;using namespace atcoder;#define rep(i,n) for (int i=0;i<n;i+=1)#define rrep(i,n) for (int i=n-1;i>-1;i--)#define pb push_back#define all(x) (x).begin(), (x).end()template<class T>using vec = vector<T>;template<class T>using vvec = vec<vec<T>>;template<class T>using vvvec = vec<vvec<T>>;using ll = long long;using pii = pair<int,int>;using pll = pair<ll,ll>;template<class T>bool chmin(T &a, T b){if (a>b){a = b;return true;}return false;}template<class T>bool chmax(T &a, T b){if (a<b){a = b;return true;}return false;}template<class T>T sum(vec<T> x){T res=0;for (auto e:x){res += e;}return res;}template<class T>void printv(vec<T> x){for (auto e:x){cout<<e<<" ";}cout<<endl;}template<class T>ostream& operator<<(ostream& os, const vec<T>& A){os << "{";rep(i,A.size()){os << A[i];if (i!=A.size()-1){os << ' ';}}os<<"}";return os;}template<class T,class U>ostream& operator<<(ostream& os, const pair<T,U>& A){os << "(" << A.first <<", " << A.second << ")";return os;}template<class T>ostream& operator<<(ostream& os, const deque<T>& A){os << "deque({";rep(i,A.size()){os << A[i];if (i!=A.size()-1){os << ' ';}}os<<"})";return os;}int pow(int a, int b, int mod){int res = 1;while (b){if (b&1){res = res * a % mod;}a = a * a % mod;b >>= 1;}return res;}using mint = modint998244353;const mint i10 = mint(10).inv();ostream& operator<<(ostream& os, const mint& a){os << a.val();return os;}int main(){ios::sync_with_stdio(false);std::cin.tie(nullptr);int N;cin>>N;string S;cin>>S;vec<mint> tmp(3,0);mint res = 0;rep(i,N){vec<mint> c(3);if (S[i]=='?'){c[0] = 4;c[1] = 3;c[2] = 3;}else{c[int(S[i])%3] = 1;}vec<mint> ntmp(3);rep(r,3){rep(rr,3){ntmp[(r+rr)%3] += tmp[r] * c[rr];}}rep(r,3){ntmp[r] += c[r];}swap(tmp,ntmp);res += tmp[0];//cout << tmp << endl;//cout << res << endl;}cout << res.val() << endl;}