結果

問題 No.1327 グラフの数え上げ
ユーザー milanis48663220
提出日時 2020-12-24 01:54:52
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 157 ms / 2,000 ms
コード長 3,070 bytes
コンパイル時間 690 ms
コンパイル使用メモリ 92,496 KB
最終ジャッジ日時 2025-01-17 06:36:25
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 4
other AC * 13
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 <iostream>
#include <algorithm>
#include <iomanip>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <cassert>
#define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl;
#define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
using namespace std;
typedef long long ll;
const ll MOD = 1000000007;
class ModInt{
public:
ll v;
ModInt(ll _v = 0){
if(_v >= MOD) _v %= MOD;
v = _v;
}
ModInt operator+(ll n){
return ModInt((v+n)%MOD);
}
ModInt operator-(ll n){
return ModInt((v-n+MOD)%MOD);
}
ModInt operator*(ll n){
if(n >= MOD) n %= MOD;
return ModInt((v*n)%MOD);
}
ModInt operator/(ll n){
return ModInt((ModInt(n).inv()*v).v%MOD);
}
void operator+=(ll n){
v = (v+n)%MOD;
}
void operator-=(ll n){
v = (v-n+MOD)%MOD;
}
void operator*=(ll n){
v = (v*n)%MOD;
}
ModInt operator+(ModInt n){
return ModInt((v+n.v)%MOD);
}
ModInt operator-(ModInt n){
return ModInt((v-n.v+MOD)%MOD);
}
ModInt operator*(ModInt n){
return ModInt((v*n.v)%MOD);
}
ModInt operator/(ModInt n){
return ModInt((n.inv()*v).v%MOD);
}
void operator+=(ModInt n){
v = (v+n.v)%MOD;
}
void operator-=(ModInt n){
v = (v-n.v+MOD)%MOD;
}
void operator*=(ModInt n){
v = (v*n.v)%MOD;
}
void operator=(ModInt n){
v = n.v;
}
void operator=(ll n){
v = n;
}
ModInt inv(){
if(v == 1) return ModInt(1);
else return ModInt(MOD-ModInt(MOD%v).inv().v*(MOD/v)%MOD);
}
};
ostream& operator<<(ostream& os, const ModInt& m){
os << m.v;
return os;
}
istream & operator >> (istream &in, ModInt &m){
in >> m.v;
return in;
}
ModInt pow(ModInt a, ll n) {
ModInt ans = 1;
ModInt tmp = a;
for (int i = 0; i <= 60; i++) {
ll m = (ll)1 << i;
if (m & n) {
ans *= tmp;
}
tmp *= tmp;
}
return ans;
}
vector<ll> v{1,
927880474,
933245637,
668123525,
429277690,
733333339,
724464507,
957939114,
203191898,
586445753,
698611116};
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout << setprecision(10) << fixed;
string s; cin >> s;
reverse(s.begin(), s.end());
ll n = 0;
ll tmp = 1;
for(char c : s){
n += tmp*(c-'0');
if(n > MOD || tmp > MOD){
cout << 0 << endl;
return 0;
}
tmp *= 10;
}
n--;
ll ans = v[(n / 100000000)];
ll st = (n/100000000) * 100000000;
for(ll i=st+1;i<=n;i++){
ans = (ans * i)%MOD;
}
if(n%2 == 1) ans = (MOD-ans)%MOD;
cout << ans << endl;
}
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