結果
問題 |
No.1085 桁和の桁和
|
ユーザー |
![]() |
提出日時 | 2020-12-02 13:07:46 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,111 bytes |
コンパイル時間 | 1,667 ms |
コンパイル使用メモリ | 170,532 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-13 09:09:56 |
合計ジャッジ時間 | 3,603 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 32 WA * 3 |
ソースコード
#include <bits/stdc++.h> #define rep(i, n) for(int(i) = 0; (i) < (n); (i)++) #define FOR(i, m, n) for(int(i) = (m); (i) < (n); (i)++) #define ALL(v) (v).begin(), (v).end() #define LLA(v) (v).rbegin(), (v).rend() #define PB push_back #define MP(a, b) make_pair((a), (b)) using namespace std; template <class T> inline vector<T> make_vec(size_t a, T val) { return vector<T>(a, val); } template <class... Ts> inline auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec(ts...))>(a, make_vec(ts...)); } template <typename T> inline T read() { T t; cin >> t; return t; } template <typename T> inline vector<T> readv(size_t sz) { vector<T> ret(sz); rep(i, sz) cin >> ret[i]; return ret; } template <typename... Ts> inline tuple<Ts...> reads() { return {read<Ts>()...}; } template <typename T> struct edge { int to; T cost; edge(int t, T c) : to(t), cost(c) {} }; using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; using Graph = vector<vector<int>>; template <typename T> using WGraph = vector<vector<edge<T>>>; const int INF = 1 << 30; const ll LINF = 1LL << 60; const int MOD = 1e9 + 7; template <uint_fast64_t MOD> class ModInt { using u64 = uint_fast64_t; public: u64 val; ModInt(const u64 x = 0) : val((x + MOD) % MOD) {} constexpr u64 &value() { return val; } constexpr ModInt operator-() { return val ? MOD - val : 0; } constexpr ModInt operator+(const ModInt &rhs) const { return ModInt(*this) += rhs; } constexpr ModInt operator-(const ModInt &rhs) const { return ModInt(*this) -= rhs; } constexpr ModInt operator*(const ModInt &rhs) const { return ModInt(*this) *= rhs; } constexpr ModInt operator/(const ModInt &rhs) const { return ModInt(*this) /= rhs; } constexpr ModInt &operator+=(const ModInt &rhs) { val += rhs.val; if(val >= MOD) { val -= MOD; } return *this; } constexpr ModInt &operator-=(const ModInt &rhs) { if(val < rhs.val) { val += MOD; } val -= rhs.val; return *this; } constexpr ModInt &operator*=(const ModInt &rhs) { val = val * rhs.val % MOD; return *this; } constexpr ModInt &operator/=(const ModInt &rhs) { *this *= rhs.inv(); return *this; } constexpr bool operator==(const ModInt &rhs) { return this->val == rhs.val; } constexpr bool operator!=(const ModInt &rhs) { return this->val != rhs.val; } friend constexpr ostream &operator<<(ostream &os, const ModInt<MOD> &x) { return os << x.val; } friend constexpr istream &operator>>(istream &is, ModInt<MOD> &x) { return is >> x.val; } constexpr ModInt inv() const { return ModInt(*this).pow(MOD - 2); } constexpr ModInt pow(ll e) const { u64 x = 1, p = val; while(e > 0) { if(e % 2 == 0) { p = (p * p) % MOD; e /= 2; } else { x = (x * p) % MOD; e--; } } return ModInt(x); } }; using mint = ModInt<MOD>; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); auto T = read<string>(); int D = read<int>(); if(D == 0) { rep(i, T.size()) { if(T[i] != '?') { if(T[i] != '0') { cout << 0 << endl; return 0; } } } cout << 1 << endl; return 0; } auto dp = make_vec(9, mint(0)); dp[0] = 1; for(int i = 0; i < T.size(); i++) { auto ndp = make_vec(9, mint(0)); for(int j = 0; j < 9; j++) { if(T[i] == '?') { for(int k = 0; k <= 9; k++) { ndp[(j + k) % 9] += dp[j]; } } else { int num = T[i] - '0'; ndp[(j + num) % 9] += dp[j]; } } swap(dp, ndp); } cout << dp[D % 9] << endl; }