結果

問題 No.1417 100の倍数かつ正整数(2)
ユーザー rokahikou1rokahikou1
提出日時 2021-03-06 00:37:17
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 29 ms / 3,000 ms
コード長 6,652 bytes
コンパイル時間 2,115 ms
コンパイル使用メモリ 182,288 KB
実行使用メモリ 12,320 KB
最終ジャッジ日時 2024-10-07 07:12:13
合計ジャッジ時間 3,102 ms
ジャッジサーバーID
(参考情報)
judge3 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 36
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 #
プレゼンテーションモードにする

#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 SZ(v) (v).size()
#define INT(...) \
int __VA_ARGS__; \
read(__VA_ARGS__)
#define LL(...) \
ll __VA_ARGS__; \
read(__VA_ARGS__)
#define DOUBLE(...) \
double __VA_ARGS__; \
read(__VA_ARGS__)
#define CHAR(...) \
char __VA_ARGS__; \
read(__VA_ARGS__)
#define STRING(...) \
string __VA_ARGS__; \
read(__VA_ARGS__)
#define VEC(type, name, size) \
vector<type> name(size); \
read(name)
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using Graph = vector<vector<int>>;
template <typename T> struct edge {
int to;
T cost;
edge(int t, T c) : to(t), cost(c) {}
};
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 <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...));
}
void read() {}
template <class T> inline void read(T &a) { cin >> a; }
template <class T, class S> inline void read(pair<T, S> &p) {
read(p.first), read(p.second);
}
template <class T> inline void read(vector<T> &v) {
for(auto &a : v)
read(a);
}
template <class Head, class... Tail>
inline void read(Head &head, Tail &...tail) {
read(head), read(tail...);
}
template <class T> inline void chmax(T &a, T b) { (a < b ? a = b : a); }
template <class T> inline void chmin(T &a, T b) { (a > b ? a = b : a); }
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);
STRING(n);
int N = n.size();
auto dp = make_vec(N + 1, 2, 2, 3, 3, mint(0));
dp[0][0][0][0][0] = 1;
for(int i = 0; i < N; i++) {
int now = n[i] - '0';
for(int smaller = 0; smaller < 2; smaller++) {
for(int start = 0; start < 2; start++) {
for(int j = 0; j < 3; j++) {
for(int k = 0; k < 3; k++) {
for(int x = 0; x <= (smaller ? 9 : now); x++) {
if(start && x == 0)
continue;
if(x == 2)
dp[i + 1][smaller || x < now][start || x]
[min(2, j + 1)][k] +=
dp[i][smaller][start][j][k];
else if(x == 4)
dp[i + 1][smaller || x < now][start || x]
[min(2, j + 2)][k] +=
dp[i][smaller][start][j][k];
else if(x == 5)
dp[i + 1][smaller || x < now][start || x][j]
[min(2, k + 1)] +=
dp[i][smaller][start][j][k];
else if(x == 6)
dp[i + 1][smaller || x < now][start || x]
[min(2, j + 1)][k] +=
dp[i][smaller][start][j][k];
else if(x == 8)
dp[i + 1][smaller || x < now][start || x]
[min(2, j + 3)][k] +=
dp[i][smaller][start][j][k];
else
dp[i + 1][smaller || x < now][start || x][j]
[k] += dp[i][smaller][start][j][k];
}
}
}
}
}
}
cout << dp[N][0][1][2][2] + dp[N][1][1][2][2] << endl;
}
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