結果
問題 | No.1760 Setwise Coprime |
ユーザー | beet |
提出日時 | 2021-11-20 18:48:29 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 40 ms / 2,000 ms |
コード長 | 3,633 bytes |
コンパイル時間 | 3,508 ms |
コンパイル使用メモリ | 251,724 KB |
実行使用メモリ | 15,744 KB |
最終ジャッジ日時 | 2024-06-11 21:27:35 |
合計ジャッジ時間 | 5,964 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 32 ms
14,208 KB |
testcase_01 | AC | 32 ms
14,208 KB |
testcase_02 | AC | 32 ms
14,208 KB |
testcase_03 | AC | 31 ms
14,208 KB |
testcase_04 | AC | 32 ms
14,208 KB |
testcase_05 | AC | 31 ms
14,208 KB |
testcase_06 | AC | 31 ms
14,080 KB |
testcase_07 | AC | 31 ms
14,080 KB |
testcase_08 | AC | 32 ms
14,208 KB |
testcase_09 | AC | 32 ms
14,208 KB |
testcase_10 | AC | 32 ms
14,208 KB |
testcase_11 | AC | 31 ms
14,208 KB |
testcase_12 | AC | 30 ms
14,208 KB |
testcase_13 | AC | 32 ms
14,208 KB |
testcase_14 | AC | 32 ms
14,080 KB |
testcase_15 | AC | 33 ms
14,208 KB |
testcase_16 | AC | 31 ms
14,208 KB |
testcase_17 | AC | 31 ms
14,208 KB |
testcase_18 | AC | 32 ms
14,208 KB |
testcase_19 | AC | 32 ms
14,208 KB |
testcase_20 | AC | 32 ms
14,208 KB |
testcase_21 | AC | 38 ms
15,488 KB |
testcase_22 | AC | 38 ms
15,232 KB |
testcase_23 | AC | 40 ms
15,488 KB |
testcase_24 | AC | 35 ms
14,848 KB |
testcase_25 | AC | 39 ms
15,488 KB |
testcase_26 | AC | 38 ms
14,976 KB |
testcase_27 | AC | 35 ms
14,720 KB |
testcase_28 | AC | 34 ms
14,464 KB |
testcase_29 | AC | 39 ms
15,736 KB |
testcase_30 | AC | 40 ms
15,616 KB |
testcase_31 | AC | 35 ms
14,720 KB |
testcase_32 | AC | 39 ms
15,488 KB |
testcase_33 | AC | 38 ms
15,104 KB |
testcase_34 | AC | 40 ms
15,616 KB |
testcase_35 | AC | 38 ms
15,360 KB |
testcase_36 | AC | 39 ms
15,612 KB |
testcase_37 | AC | 39 ms
15,740 KB |
testcase_38 | AC | 39 ms
15,744 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using Int = long long; const char newl = '\n'; template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;} template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;} template<typename T> void drop(const T &x){cout<<x<<endl;exit(0);} template<typename T=Int> vector<T> read(size_t n){ vector<T> ts(n); for(size_t i=0;i<n;i++) cin>>ts[i]; return ts; } template<typename T, T MOD = 1000000007> struct Mint{ inline static constexpr T mod = MOD; T v; Mint():v(0){} Mint(signed v):v(v){} Mint(long long t){v=t%MOD;if(v<0) v+=MOD;} Mint pow(long long k){ Mint res(1),tmp(v); while(k){ if(k&1) res*=tmp; tmp*=tmp; k>>=1; } return res; } static Mint add_identity(){return Mint(0);} static Mint mul_identity(){return Mint(1);} Mint inv(){return pow(MOD-2);} Mint& operator+=(Mint a){v+=a.v;if(v>=MOD)v-=MOD;return *this;} Mint& operator-=(Mint a){v+=MOD-a.v;if(v>=MOD)v-=MOD;return *this;} Mint& operator*=(Mint a){v=1LL*v*a.v%MOD;return *this;} Mint& operator/=(Mint a){return (*this)*=a.inv();} Mint operator+(Mint a) const{return Mint(v)+=a;} Mint operator-(Mint a) const{return Mint(v)-=a;} Mint operator*(Mint a) const{return Mint(v)*=a;} Mint operator/(Mint a) const{return Mint(v)/=a;} Mint operator+() const{return *this;} Mint operator-() const{return v?Mint(MOD-v):Mint(v);} bool operator==(const Mint a)const{return v==a.v;} bool operator!=(const Mint a)const{return v!=a.v;} static Mint comb(long long n,Int k){ Mint num(1),dom(1); for(Int i=0;i<k;i++){ num*=Mint(n-i); dom*=Mint(i+1); } return num/dom; } }; template<typename T, T MOD> ostream& operator<<(ostream &os,Mint<T, MOD> m){os<<m.v;return os;} const Int MAX = 2e5+10; Int pr[MAX]={}; Int sq[MAX]={}; Int sign[MAX]={}; template <class T> void divisor_transform(std::vector<T> &a) { int n = a.size(); std::vector<bool> sieve(n, true); for (int p = 2; p < n; ++p) { if (sieve[p]) { for (int k = 1; k * p < n; ++k) { sieve[k * p] = false; a[k * p] += a[k]; } } } } template <class T> void inverse_divisor_transform(std::vector<T> &a) { int n = a.size(); std::vector<bool> sieve(n, true); for (int p = 2; p < n; ++p) { if (sieve[p]) { for (int k = (n - 1) / p; k != 0; --k) { sieve[k * p] = false; a[k * p] -= a[k]; } } } } //INSERT ABOVE HERE signed main(){ cin.tie(0); ios::sync_with_stdio(0); for(Int i=2;i<MAX;i++){ if(pr[i]) continue; for(Int j=i;j<MAX;j+=i) pr[j]=i; for(Int j=i*i;j<MAX;j+=i*i) sq[j]=1; } Int n; cin>>n; sign[1]=1; for(Int i=2;i<=n;i++){ if(sq[i]) continue; sign[i]=-sign[i/pr[i]]; } using M = Mint<Int, 998244353>; vector<M> way(MAX,0),emp(MAX,0); M all{0}; M cnt{0}; for(Int i=1;i<=n;i++){ way[i]=M(sign[i])*M(2).pow(n/i); emp[i]=M(sign[i])*M(1).pow(n/i); all+=way[i]; cnt+=emp[i]; } divisor_transform(way); divisor_transform(emp); vector<M> dp0(MAX,0),dp1(MAX,0),dp2(MAX,0); for(Int i=1;i<MAX;i++){ dp0[i]=emp[i]*emp[i]; dp1[i]=emp[i]*way[i]; dp2[i]=way[i]*way[i]; } inverse_divisor_transform(dp0); inverse_divisor_transform(dp1); inverse_divisor_transform(dp2); M ans=(all-cnt)*(all-cnt); M sum{0}; M cof=M(3)/M(4); for(Int i=1;i<MAX;i++){ M res{0}; res+=dp2[i]*cof.pow(n/i); res-=M(2)*dp1[i]; res+=dp0[i]; sum+=res; ans-=dp2[i]; ans+=M(2)*dp1[i]; ans-=dp0[i]; } cout<<ans+sum<<newl; return 0; }