結果

問題 No.1260 たくさんの多項式
ユーザー suta28407928suta28407928
提出日時 2020-10-17 00:16:45
言語 C++14
(gcc 13.2.0 + boost 1.83.0)
結果
AC  
実行時間 59 ms / 2,000 ms
コード長 4,139 bytes
コンパイル時間 1,292 ms
コンパイル使用メモリ 112,664 KB
実行使用メモリ 27,084 KB
最終ジャッジ日時 2023-09-28 07:03:09
合計ジャッジ時間 5,266 ms
ジャッジサーバーID
(参考情報)
judge11 / judge13
このコードへのチャレンジ(β)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 10 ms
27,000 KB
testcase_01 AC 11 ms
27,068 KB
testcase_02 AC 10 ms
26,768 KB
testcase_03 AC 10 ms
27,084 KB
testcase_04 AC 10 ms
26,744 KB
testcase_05 AC 10 ms
26,876 KB
testcase_06 AC 10 ms
26,880 KB
testcase_07 AC 10 ms
26,940 KB
testcase_08 AC 10 ms
27,044 KB
testcase_09 AC 9 ms
26,880 KB
testcase_10 AC 10 ms
26,928 KB
testcase_11 AC 9 ms
26,940 KB
testcase_12 AC 11 ms
26,772 KB
testcase_13 AC 10 ms
27,076 KB
testcase_14 AC 10 ms
26,972 KB
testcase_15 AC 11 ms
26,896 KB
testcase_16 AC 10 ms
26,856 KB
testcase_17 AC 10 ms
27,044 KB
testcase_18 AC 10 ms
26,968 KB
testcase_19 AC 10 ms
26,940 KB
testcase_20 AC 57 ms
27,004 KB
testcase_21 AC 23 ms
26,960 KB
testcase_22 AC 50 ms
26,936 KB
testcase_23 AC 43 ms
26,772 KB
testcase_24 AC 45 ms
26,860 KB
testcase_25 AC 38 ms
27,004 KB
testcase_26 AC 43 ms
26,888 KB
testcase_27 AC 36 ms
26,876 KB
testcase_28 AC 54 ms
27,072 KB
testcase_29 AC 44 ms
26,900 KB
testcase_30 AC 30 ms
26,888 KB
testcase_31 AC 43 ms
26,776 KB
testcase_32 AC 42 ms
26,736 KB
testcase_33 AC 36 ms
27,000 KB
testcase_34 AC 54 ms
26,948 KB
testcase_35 AC 31 ms
27,008 KB
testcase_36 AC 28 ms
27,008 KB
testcase_37 AC 43 ms
26,852 KB
testcase_38 AC 46 ms
26,924 KB
testcase_39 AC 53 ms
26,880 KB
testcase_40 AC 46 ms
26,772 KB
testcase_41 AC 53 ms
26,768 KB
testcase_42 AC 41 ms
26,768 KB
testcase_43 AC 55 ms
27,048 KB
testcase_44 AC 40 ms
26,940 KB
testcase_45 AC 36 ms
26,864 KB
testcase_46 AC 33 ms
26,948 KB
testcase_47 AC 38 ms
27,048 KB
testcase_48 AC 15 ms
26,940 KB
testcase_49 AC 31 ms
26,776 KB
testcase_50 AC 23 ms
26,916 KB
testcase_51 AC 52 ms
26,776 KB
testcase_52 AC 24 ms
26,824 KB
testcase_53 AC 30 ms
26,768 KB
testcase_54 AC 53 ms
26,996 KB
testcase_55 AC 59 ms
26,872 KB
testcase_56 AC 31 ms
26,940 KB
testcase_57 AC 41 ms
26,780 KB
testcase_58 AC 29 ms
26,968 KB
testcase_59 AC 46 ms
27,004 KB
testcase_60 AC 59 ms
27,076 KB
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 #

#pragma GCC target("avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <iostream>
#include <string>
#include <cstdlib>
#include <cmath>
#include <vector>
#include <unordered_map>
#include <map>
#include <set>
#include <algorithm>
#include <queue>
#include <stack>
#include <functional>
#include <bitset>
#include <assert.h>
#include <unordered_map>
#include <fstream>
#include <ctime>
#include <complex>
using namespace std;
typedef long long ll;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<bool> vb;
typedef vector<double> vd;
typedef pair<ll,ll> P;
typedef pair<int,int> pii;
typedef vector<P> vpl;
typedef tuple<ll,ll,ll> tapu;
#define rep(i,n) for(int i=0; i<(n); i++)
#define REP(i,a,b) for(int i=(a); i<(b); i++)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
const int inf = 1<<30;
const ll linf = 1LL<<62;
const int MAX = 1020000;
ll dy[8] = {1,-1,0,0,1,-1,1,-1};
ll dx[8] = {0,0,1,-1,1,-1,-1,1};
const double pi = acos(-1);
const double eps = 1e-10;
template<typename T1,typename T2> inline bool chmin(T1 &a,T2 b){
	if(a>b){
		a = b; return true;
	}
	else return false;
}
template<typename T1,typename T2> inline bool chmax(T1 &a,T2 b){
	if(a<b){
		a = b; return true;
	}
	else return false;
}
template<typename T> inline void print(T &a){
    for(auto itr = a.begin(); itr != a.end(); itr++){
		cout << *itr << " ";
	}
    cout << "\n";
}
template<typename T1,typename T2> inline void print2(T1 a, T2 b){
	cout << "debug: " << a << " " << b << "\n";
}
template<typename T1,typename T2,typename T3> inline void print3(T1 a, T2 b, T3 c){
	cout << "debug: " << a << " " << b << " " << c << "\n";
}
void mark() {cout << "#" << "\n";}
ll pcount(ll x) {return __builtin_popcountll(x);}
const int mod = 1e9 + 7;
//const int mod = 998244353;

template <std::uint_fast64_t Modulus> class modint {
  using u64 = std::uint_fast64_t;

public:
  u64 a;

  constexpr modint(const u64 x = 0) noexcept : a(x % Modulus) {}
  constexpr u64 &value() noexcept { return a; }
  constexpr const u64 &value() const noexcept { return a; }
  constexpr modint operator+(const modint rhs) const noexcept {
	return modint(*this) += rhs;
  }
  constexpr modint operator-(const modint rhs) const noexcept {
	return modint(*this) -= rhs;
  }
  constexpr modint operator*(const modint rhs) const noexcept {
	return modint(*this) *= rhs;
  }
  constexpr modint operator/(const modint rhs) const noexcept {
	return modint(*this) /= rhs;
  }
  constexpr modint &operator+=(const modint rhs) noexcept {
	a += rhs.a;
	if (a >= Modulus) {
	  a -= Modulus;
	}
	return *this;
  }
  constexpr modint &operator-=(const modint rhs) noexcept {
	if (a < rhs.a) {
	  a += Modulus;
	}
	a -= rhs.a;
	return *this;
  }
  constexpr modint &operator*=(const modint rhs) noexcept {
	a = a * rhs.a % Modulus;
	return *this;
  }
  constexpr modint &operator/=(modint rhs) noexcept {
	u64 exp = Modulus - 2;
	while (exp) {
	  if (exp % 2) {
		*this *= rhs;
	  }
	  rhs *= rhs;
	  exp /= 2;
	}
	return *this;
  }
};

using mint = modint<mod>;

vector<ll> fac(MAX), finv(MAX), inv(MAX);

void comInit(){
	fac[0] = fac[1] = 1;
	finv[0] = finv[1] = 1;
	inv[1] = 1;
	for(ll i=2; i<MAX; i++){
		fac[i] = fac[i-1]*i % mod;
		inv[i] = mod - inv[mod%i] * (mod/i) % mod;
		finv[i] = finv[i-1] * inv[i] % mod;
	}
}


ll com(ll n, ll k){
	if(n < k) return 0;
	if(n < 0 || k < 0) return 0;
	return fac[n] * (finv[k] * finv[n-k] % mod) % mod;
}

ll modpow(ll x, ll n, ll mod){
	ll res = 1;
	while(n > 0){
		if(n & 1) res = res * x % mod;
		x = x * x % mod;
		n >>= 1;
	}
	return res;
}

int main(){
	ll n; cin >> n;
	ll q = sqrt(n) + 1;
	mint ans = 0;
	for(int i=2; i<=q; i++){
		ll tmp = n;
		while(tmp >= i){
			ans += tmp % i;
			tmp /= i;
		}
		ans += tmp;
	}
	ll now = q + 1;
	for(int i=q; i>=1; i--){
		if(now <= n/i){
			ll cnt = n/i - now + 1;
			ans += cnt * i;
			mint tmp = n;
			tmp *= cnt;
			mint tmp2 = now + now + cnt - 1;
			tmp2 *= cnt;
			tmp2 *= 500000004;
			tmp2 *= i;
			ans += tmp - tmp2;
			now = n/i + 1;
		}
	}
	cout << ans.value() << "\n";
}
0