結果
| 問題 | No.1085 桁和の桁和 |
| コンテスト | |
| ユーザー |
momohara
|
| 提出日時 | 2020-06-20 01:24:37 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 28 ms / 2,000 ms |
| コード長 | 4,222 bytes |
| コンパイル時間 | 2,014 ms |
| コンパイル使用メモリ | 174,580 KB |
| 実行使用メモリ | 10,368 KB |
| 最終ジャッジ日時 | 2024-11-06 17:40:16 |
| 合計ジャッジ時間 | 3,415 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 35 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define rep(i, m, n) for(int(i) = (int)(m); i < (int)(n); ++i)
#define rep2(i, m, n) for(int(i) = (int)(n)-1; i >= (int)(m); --i)
#define REP(i, n) rep(i, 0, n)
#define REP2(i, n) rep2(i, 0, n)
#define all(hoge) (hoge).begin(), (hoge).end()
#define en '\n'
using ll = long long;
using ull = unsigned long long;
template <class T>
using vec = vector<T>;
template <class T>
using vvec = vector<vec<T>>;
typedef pair<ll, ll> P;
constexpr long long INF = 1LL << 60;
constexpr int INF_INT = 1 << 25;
constexpr long long MOD = (ll)1e9 + 7;
// constexpr long long MOD = 998244353LL;
using ld = long double;
static const ld pi = 3.141592653589793L;
typedef vector<ll> Array;
typedef vector<Array> Matrix;
template <class T>
inline bool chmin(T &a, T b) {
if(a > b) {
a = b;
return true;
}
return false;
}
template <class T>
inline bool chmax(T &a, T b) {
if(a < b) {
a = b;
return true;
}
return false;
}
struct Edge {
ll to, rev;
long double cap;
Edge(ll _to, long double _cap, ll _rev) {
to = _to;
cap = _cap;
rev = _rev;
}
};
using Edges = vector<Edge>;
using Graph = vector<Edges>;
void add_edge(Graph &G, ll from, ll to, long double cap, bool revFlag,
long double revCap) {
G[from].push_back(Edge(to, cap, (ll)G[to].size()));
if(revFlag)
G[to].push_back(Edge(from, revCap, (ll)G[from].size() - 1));
}
template <int mod>
struct ModInt {
int x;
ModInt() : x(0) {}
ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
ModInt &operator+=(const ModInt &p) {
if((x += p.x) >= mod)
x -= mod;
return *this;
}
ModInt &operator-=(const ModInt &p) {
if((x += mod - p.x) >= mod)
x -= mod;
return *this;
}
ModInt &operator*=(const ModInt &p) {
x = (int)(1LL * x * p.x % mod);
return *this;
}
ModInt &operator/=(const ModInt &p) {
*this *= p.inverse();
return *this;
}
ModInt operator-() const { return ModInt(-x); }
ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }
ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }
ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }
ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }
bool operator==(const ModInt &p) const { return x == p.x; }
bool operator!=(const ModInt &p) const { return x != p.x; }
ModInt inverse() const {
int a = x, b = mod, u = 1, v = 0, t;
while(b > 0) {
t = a / b;
swap(a -= t * b, b);
swap(u -= t * v, v);
}
return ModInt(u);
}
ModInt pow(int64_t n) const {
ModInt ret(1), mul(x);
while(n > 0) {
if(n & 1)
ret *= mul;
mul *= mul;
n >>= 1;
}
return ret;
}
friend ostream &operator<<(ostream &os, const ModInt &p) {
return os << p.x;
}
friend istream &operator>>(istream &is, ModInt &a) {
int64_t t;
is >> t;
a = ModInt<mod>(t);
return (is);
}
static int get_mod() { return mod; }
};
using mint = ModInt<MOD>;
void solve() {
string t;
ll d;
cin >> t >> d;
ll n = t.size();
vvec<mint> dp(n + 1, vec<mint>(10, 0));
dp[0][0] = 1;
REP(i, n) {
REP(j, 10) {
if(dp[i][j] == 0)
continue;
if(t[i] == '?') {
REP(k, 10) {
int nj = j + k;
if(nj > 9)
nj = nj % 10 + nj / 10;
dp[i + 1][nj] += dp[i][j];
}
} else {
int k = t[i] - '0';
int nj = j + k;
if(nj > 9)
nj = nj % 10 + nj / 10;
dp[i + 1][nj] += dp[i][j];
}
}
}
cout << dp[n][d] << en;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
solve();
// ll t;cin>>t;REP(i,t) solve();
return 0;
}
momohara