結果
問題 |
No.3242 Count 8 Included Numbers (Hard)
|
ユーザー |
|
提出日時 | 2025-08-22 22:11:36 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 291 ms / 2,000 ms |
コード長 | 3,100 bytes |
コンパイル時間 | 6,197 ms |
コンパイル使用メモリ | 335,644 KB |
実行使用メモリ | 136,112 KB |
最終ジャッジ日時 | 2025-08-22 22:12:30 |
合計ジャッジ時間 | 11,541 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 20 |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; using ll = long long; using ld = long double; using ull = unsigned long long; template<typename T> using pq = priority_queue<T>; template<typename T> using pq_g = priority_queue<T, vector<T>, greater<T>>; using mint = modint998244353; // using mint = modint1000000007; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define all(v) (v).begin(), (v).end() #define rall(v) (v).rbegin(), (v).rend() #define NP next_permutation #define endl "\n" #define debug(x) cerr << #x << " = " << (x) << endl const int INF = 2e9; const ll LINF = 2e18; void Yes(bool a) {cout << (a ? "Yes" : "No") << endl;} void YES(bool a) {cout << (a ? "YES" : "NO") << endl;} void Possible(bool a) {cout << (a ? "Possible" : "Impossible") << endl;} void POSSIBLE(bool a) {cout << (a ? "POSSIBLE" : "IMPOSSIBLE") << endl;} ll modPow(ll a, ll n, ll mod = LINF) {ll ret = 1; ll x = a % mod; while (n) {if (n & 1) ret = ret * x % mod; x = x * x % mod; n >>= 1;} return ret;} template<typename T> T floor(T a, T b) {return a / b - (a % b && (a ^ b) < 0);} template<typename T> T ceil(T a, T b) {return floor(a + b - 1, b);} template<typename T> void vcin(vector<T> &a) {rep(i, int(a.size())) cin >> a[i];} template<typename T, typename K> void vcin(vector<T> &a, vector<K> &b) {rep(i, int(a.size())) cin >> a[i] >> b[i];} template<typename T> void vcout(vector<T> &a) {rep(i, int(a.size())) {cout << a[i] << " ";} cout << endl;} template<typename T> void vcin(vector<vector<T>> &a) {rep(i, int(a.size())) rep(j, (int)a[i].size()) cin >> a[i][j];} template<typename T> void vcout(vector<vector<T>> &a) {rep(i, int(a.size())) {rep(j, int(a[i].size())) {cout << a[i][j] << " ";} cout << endl;} cout << endl;} template<typename T> auto vmin(vector<T> &a) {return *min_element(all(a));} template<typename T> auto vmax(vector<T> &a) {return *max_element(all(a));} template<typename T> auto vsum(vector<T> a) {return accumulate(all(a), T(0));} template<typename T> bool chmin(T &a, T b){if(a > b){a = b; return true;} return false;} template<typename T> bool chmax(T &a, T b){if(a < b){a = b; return true;} return false;} void cincout() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(15); } int main() { cincout(); string S; cin >> S; vector<vector<vector<mint>>> dp(S.size() + 1, vector<vector<mint>>(2, vector<mint>(2))); dp[0][0][0] = 1; for (int i = 0; i < S.size(); i++) { int x = S[i] - '0'; for (int j = 0; j < 10; j++) { dp[i + 1][1][1] += dp[i][1][1] + (j == 8 ? dp[i][1][0] : 0); dp[i + 1][1][0] += (j != 8 ? dp[i][1][0] : 0); } for (int j = 0; j < x; j++) { dp[i + 1][1][1] += dp[i][0][1] + (j == 8 ? dp[i][0][0] : 0); dp[i + 1][1][0] += (j != 8 ? dp[i][0][0] : 0); } dp[i + 1][0][1] += dp[i][0][1] + (x == 8 ? dp[i][0][0] : 0); dp[i + 1][0][0] += (x != 8 ? dp[i][0][0] : 0); } cout << (dp[S.size()][0][1] + dp[S.size()][1][1]).val() << endl; }