#570979 (C++14) No.1260 たくさんの多項式

• 問題: No.1260 たくさんの多項式
• ユーザー: kotatsugame
• 提出日時: 2020-10-24 00:54:29
• 言語: C++14 (gcc 13.2.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 103 ms / 2,000 ms
• コード長: 2,425 bytes
• コンパイル時間: 490 ms
• コンパイル使用メモリ: 66,432 KB
• 実行使用メモリ: 4,380 KB
• 最終ジャッジ日時: 2023-09-28 19:50:32
• 合計ジャッジ時間: 5,699 ms
• ジャッジサーバーID （参考情報）: judge13 / judge11

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 4,380 KB
testcase_01	AC	3 ms; 4,380 KB
testcase_02	AC	3 ms; 4,376 KB
testcase_03	AC	2 ms; 4,376 KB
testcase_04	AC	2 ms; 4,376 KB
testcase_05	AC	2 ms; 4,376 KB
testcase_06	AC	2 ms; 4,376 KB
testcase_07	AC	2 ms; 4,376 KB
testcase_08	AC	2 ms; 4,376 KB
testcase_09	AC	2 ms; 4,380 KB
testcase_10	AC	3 ms; 4,380 KB
testcase_11	AC	3 ms; 4,380 KB
testcase_12	AC	2 ms; 4,380 KB
testcase_13	AC	3 ms; 4,376 KB
testcase_14	AC	2 ms; 4,376 KB
testcase_15	AC	2 ms; 4,380 KB
testcase_16	AC	2 ms; 4,380 KB
testcase_17	AC	2 ms; 4,376 KB
testcase_18	AC	3 ms; 4,376 KB
testcase_19	AC	2 ms; 4,376 KB
testcase_20	AC	101 ms; 4,380 KB
testcase_21	AC	30 ms; 4,380 KB
testcase_22	AC	88 ms; 4,380 KB
testcase_23	AC	72 ms; 4,380 KB
testcase_24	AC	73 ms; 4,376 KB
testcase_25	AC	59 ms; 4,376 KB
testcase_26	AC	70 ms; 4,376 KB
testcase_27	AC	57 ms; 4,376 KB
testcase_28	AC	99 ms; 4,376 KB
testcase_29	AC	73 ms; 4,380 KB
testcase_30	AC	46 ms; 4,376 KB
testcase_31	AC	74 ms; 4,376 KB
testcase_32	AC	73 ms; 4,376 KB
testcase_33	AC	60 ms; 4,380 KB
testcase_34	AC	94 ms; 4,380 KB
testcase_35	AC	44 ms; 4,376 KB
testcase_36	AC	40 ms; 4,376 KB
testcase_37	AC	75 ms; 4,376 KB
testcase_38	AC	81 ms; 4,380 KB
testcase_39	AC	96 ms; 4,380 KB
testcase_40	AC	73 ms; 4,380 KB
testcase_41	AC	91 ms; 4,376 KB
testcase_42	AC	67 ms; 4,376 KB
testcase_43	AC	95 ms; 4,380 KB
testcase_44	AC	62 ms; 4,376 KB
testcase_45	AC	59 ms; 4,376 KB
testcase_46	AC	55 ms; 4,376 KB
testcase_47	AC	67 ms; 4,376 KB
testcase_48	AC	15 ms; 4,380 KB
testcase_49	AC	51 ms; 4,380 KB
testcase_50	AC	27 ms; 4,380 KB
testcase_51	AC	95 ms; 4,380 KB
testcase_52	AC	34 ms; 4,376 KB
testcase_53	AC	45 ms; 4,376 KB
testcase_54	AC	97 ms; 4,380 KB
testcase_55	AC	101 ms; 4,376 KB
testcase_56	AC	48 ms; 4,380 KB
testcase_57	AC	70 ms; 4,380 KB
testcase_58	AC	42 ms; 4,376 KB
testcase_59	AC	73 ms; 4,376 KB
testcase_60	AC	103 ms; 4,380 KB

コンパイルメッセージ

a.cpp:6:1: 警告: ISO C++ では型の無い ‘main’ の宣言を禁止しています [-Wreturn-type]

ソースコード

#line 1 "a.cpp"
#include<iostream>
using namespace std;
#line 3 "/home/kotatsugame/library/math/modint.cpp"
#include<utility>
template<int m>
struct modint{
	unsigned int x;
	constexpr modint()noexcept:x(){}
	template<typename T>
	constexpr modint(T x_)noexcept:x((x_%=m)<0?x_+m:x_){}
	constexpr unsigned int val()const noexcept{return x;}
	constexpr modint&operator++()noexcept{if(++x==m)x=0;return*this;}
	constexpr modint&operator--()noexcept{if(x==0)x=m;--x;return*this;}
	constexpr modint operator++(int)noexcept{modint res=*this;++*this;return res;}
	constexpr modint operator--(int)noexcept{modint res=*this;--*this;return res;}
	constexpr modint&operator+=(const modint&a)noexcept{x+=a.x;if(x>=m)x-=m;return*this;}
	constexpr modint&operator-=(const modint&a)noexcept{if(x<a.x)x+=m;x-=a.x;return*this;}
	constexpr modint&operator*=(const modint&a)noexcept{x=(unsigned long long)x*a.x%m;return*this;}
	constexpr modint&operator/=(const modint&a)noexcept{return*this*=a.inv();}
	constexpr modint operator+()const noexcept{return*this;}
	constexpr modint operator-()const noexcept{return modint()-*this;}
	constexpr modint pow(long long n)const noexcept
	{
		if(n<0)return pow(-n).inv();
		modint x=*this,r=1;
		for(;n;x*=x,n>>=1)if(n&1)r*=x;
		return r;
	}
	constexpr modint inv()const noexcept
	{
		int s=x,t=m,x=1,u=0;
		while(t)
		{
			int k=s/t;
			s-=k*t;
			swap(s,t);
			x-=k*u;
			swap(x,u);
		}
		return modint(x);
	}
	friend constexpr modint operator+(const modint&a,const modint&b){return modint(a)+=b;}
	friend constexpr modint operator-(const modint&a,const modint&b){return modint(a)-=b;}
	friend constexpr modint operator*(const modint&a,const modint&b){return modint(a)*=b;}
	friend constexpr modint operator/(const modint&a,const modint&b){return modint(a)/=b;}
	friend constexpr bool operator==(const modint&a,const modint&b){return a.x==b.x;}
	friend constexpr bool operator!=(const modint&a,const modint&b){return a.x!=b.x;}
	friend ostream&operator<<(ostream&os,const modint&a){return os<<a.x;}
	friend istream&operator>>(istream&is,modint&a){long long v;is>>v;a=modint(v);return is;}
};
#line 4 "a.cpp"
using mint=modint<(int)1e9+7>;
long N;
main()
{
	cin>>N;
	long i=2;
	mint ans=0;
	for(;i*i<=N;i++)
	{
		long t=N;
		while(t)
		{
			ans+=t%i;
			t/=i;
		}
	}
	while(i<=N)
	{
		long j=N/(N/i)+1;
		mint L=j-i;
		ans+=L*(N/i);
		ans+=N*L;
		ans-=N/i*(L*(L-1)/2+i*L);
		i=j;
	}
	cout<<ans<<endl;
}