結果

問題 No.741 AscNumber(Easy)
ユーザー pythontanukipythontanuki
提出日時 2022-12-20 13:50:13
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 495 ms / 2,000 ms
コード長 3,724 bytes
コンパイル時間 2,063 ms
コンパイル使用メモリ 202,848 KB
最終ジャッジ日時 2025-02-09 17:21:23
ジャッジサーバーID
(参考情報)
judge2 / judge1
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ファイルパターン 結果
other AC * 55
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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>
using namespace std;
using C = complex<double>;
const long long mod = 1000000007ll;
const long long LINF = 1001002003004005006;
const int INF = 1001001001;
const double PI = acos(-1);
const double EPS = 1e-10;
const int di[4] = {-1,0,1,0};
const int dj[4] = {0,-1,0,1};
const int dx[8] = {1,1,1,0,0,-1,-1,-1};
const int dy[8] = {1,0,-1,1,-1,1,0,-1};
# define sz(x) (int)(x).size()
# define rsz(x,n) x.resize(n)
# define yosupo(x) {cout << (x) << endl; return 0;}
# define ll long long
# define fi first
# define se second
# define pb push_back
# define pf push_front
# define eb emplace_back
# define ef emplace_front
# define pob pop_back
# define pof pop_front
# define GET_MACRO(_1, _2, _3, NAME, ...) NAME
# define _rep(i, n) _rep2(i, 0, n)
# define _rep2(i, a, b) for(int i = (int)(a); i < (int)(b); i++)
# define rep(...) GET_MACRO(__VA_ARGS__, _rep2, _rep)(__VA_ARGS__)
# define srep(i, a, b) for(int i = a; i <= b; ++i)
# define all(obj) (obj).begin(), (obj).end()
# define rall(obj) (obj).rbegin(), (obj).rend()
inline void YesNo(bool f) { std::cout << (f? "Yes": "No") << std::endl; }
void read() {}
template <typename T, class... U> void read(T &t, U &...u) { cin >> t; read(u...); }
void writeln() { cout << endl; }
template <typename T, class... U, char sep = ' '> void writeln(const T &t, const U &...u) { cout << t; if (sizeof...(u)) cout << sep; writeln(u...);
    }
# define Pll pair<ll, ll>
# define P pair<int,int>
# define bit(x,i) (((x) >> (i)) & 1)
# define equals(a, b) (fabs((a) - (b)) < EPS) //
template<class T>bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; }
template<typename T>istream& operator>>(istream&i,vector<T>&v){rep(j,v.size())i>>v[j];return i;}
template<typename T>string join(vector<T>&v){stringstream s;rep(i,v.size())s<<' '<<v[i];return s.str().substr(1);}
template<typename T>ostream& operator<<(ostream&o,vector<T>&v){if(v.size())o<<join(v);return o;}
template<typename T>ostream& operator<<(ostream&o,vector<vector<T>>&vv){if(vv.size())o<<join(vv);return o;}
template <class T, class U> ostream& operator<<(ostream& os, const pair<T, U>& p) { return os << "P(" << p.first << " " << p.second << ")";}
template<typename T> using vc = vector<T>;
template<typename T> using vv = vc<vc<T>>;
using vi = vc<int>; using vvi = vv<int>;
using vl = vc<ll>; using vvl = vv<ll>;
string s;
void solve() {
int N;
read(N);
s += '1';
rep(i,N) s += '0';
int n = sz(s);
vv<vc<ll>> dp(1100000,vv<ll>(2,vc<ll>(10,0)));
dp[0][0][0] = 1;
rep(i,n) {
int nd = s[i]-'0';
rep(j,2) {
if(j == 0) {
rep(k,10) {//
rep(nk,k,nd+1) {//
if(nk == nd) {
dp[i+1][0][nk] += dp[i][0][k];
dp[i+1][0][nk] %= mod;
}
else {
dp[i+1][1][nk] += dp[i][0][k];
dp[i+1][1][nk] %= mod;
}
}
}
}
else {//j == 1
rep(k,10) {
rep(nk,k,10) {
dp[i+1][1][nk] += dp[i][1][k];
dp[i+1][1][nk] %= mod;
}
}
}
}
}
ll ans = 0;
rep(j,2) rep(k,10) {
ans += dp[n][j][k];
}
ans %= mod;
printf("%lld\n", ans);
}
int main() {
int tt = 1;
//read(tt);
while(tt--) {
solve();
}
}
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