結果
| 問題 |
No.1396 Giri
|
| コンテスト | |
| ユーザー |
mugen_1337
|
| 提出日時 | 2021-02-14 21:42:37 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 38 ms / 2,000 ms |
| コード長 | 4,167 bytes |
| コンパイル時間 | 2,092 ms |
| コンパイル使用メモリ | 202,736 KB |
| 最終ジャッジ日時 | 2025-01-18 20:49:48 |
|
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 |
|---|---|
| sample | AC * 3 |
| other | AC * 23 |
ソースコード
#include<bits/stdc++.h>
using namespace std;
#define ALL(x) begin(x),end(x)
#define rep(i,n) for(int i=0;i<(n);i++)
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
using ll=long long;
const int INF=1000000000;
const ll LINF=1001002003004005006ll;
int dx[]={1,0,-1,0},dy[]={0,1,0,-1};
// ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;}
template<class T>bool chmin(T &a,const T &b){if(b<a){a=b;return true;}return false;}
struct IOSetup{
IOSetup(){
cin.tie(0);
ios::sync_with_stdio(0);
cout<<fixed<<setprecision(12);
}
} iosetup;
template<typename T>
ostream &operator<<(ostream &os,const vector<T>&v){
for(int i=0;i<(int)v.size();i++) os<<v[i]<<(i+1==(int)v.size()?"":" ");
return os;
}
template<typename T>
istream &operator>>(istream &is,vector<T>&v){
for(T &x:v)is>>x;
return is;
}
#line 1 "SegmentTree/SegmentTree.cpp"
template<typename Monoid>
struct SegmentTree{
int sz;
vector<Monoid> seg;
Monoid M0;// モノイドの元
using F=function<Monoid(Monoid,Monoid)>;
F f;
SegmentTree(int n,Monoid M0,F f):M0(M0),f(f){
sz=1;
while(sz<n)sz<<=1;
seg.assign(2*sz,M0);
}
void set(int k,Monoid x){
seg[k+sz]=x;
}
void build(){
for(int k=sz-1;k>0;k--) seg[k]=f(seg[2*k],seg[2*k+1]);
}
void update(int k,Monoid x){
k+=sz;
seg[k]=x;
k>>=1;
for(;k;k>>=1) seg[k]=f(seg[2*k],seg[2*k+1]);
}
Monoid query(int a,int b,int k=1,int l=0,int r=-1){
if(r==-1) r=sz;
if(a<=l and r<=b) return seg[k];
if(b<=l or r<=a) return M0;
Monoid L=query(a,b,2*k,l,(l+r)/2);
Monoid R=query(a,b,2*k+1,(l+r)/2,r);
return f(L,R);
}
};
#line 1 "type/modint.cpp"
template<ll Mod>
struct ModInt{
long long x;
ModInt():x(0){}
ModInt(long long y):x(y>=0?y%Mod:(Mod-(-y)%Mod)%Mod){}
ModInt &operator+=(const ModInt &p){
if((x+=p.x)>=Mod) x-=Mod;
return *this;
}
ModInt &operator-=(const ModInt &p){
if((x+=Mod-p.x)>=Mod)x-=Mod;
return *this;
}
ModInt &operator*=(const ModInt &p){
x=(int)(1ll*x*p.x%Mod);
return *this;
}
ModInt &operator/=(const ModInt &p){
(*this)*=p.inverse();
return *this;
}
ModInt operator-()const{return ModInt(-x);}
ModInt operator+(const ModInt &p)const{return ModInt(*this)+=p;}
ModInt operator-(const ModInt &p)const{return ModInt(*this)-=p;}
ModInt operator*(const ModInt &p)const{return ModInt(*this)*=p;}
ModInt operator/(const ModInt &p)const{return ModInt(*this)/=p;}
bool operator==(const ModInt &p)const{return x==p.x;}
bool operator!=(const ModInt &p)const{return x!=p.x;}
ModInt inverse()const{
int a=x,b=Mod,u=1,v=0,t;
while(b>0){
t=a/b;
swap(a-=t*b,b);swap(u-=t*v,v);
}
return ModInt(u);
}
ModInt pow(long long n)const{
ModInt ret(1),mul(x);
while(n>0){
if(n&1) ret*=mul;
mul*=mul;n>>=1;
}
return ret;
}
friend ostream &operator<<(ostream &os,const ModInt &p){return os<<p.x;}
friend istream &operator>>(istream &is,ModInt &a){long long t;is>>t;a=ModInt<Mod>(t);return (is);}
static int get_mod(){return Mod;}
};
using mint=ModInt<998244353>;
#line 1 "Math/Sieve.cpp"
vector<bool> sieve(int n){
vector<bool> ret(n+1,true);
ret[0]=false;
if(n>0) ret[1]=false;
for(int i=2;i*i<=n;i++){
if(!ret[i]) continue;
for(int j=i*2;j<=n;j+=i) ret[j]=false;
}
return ret;
}
auto p=sieve(1000010);
signed main(){
int n;cin>>n;
int maxp=1;
for(int i=2;i<=n;i++) if(p[i]) chmax(maxp,i);
map<ll,ll> mp;
for(int i=2;i<=n;i++)if(i!=maxp and p[i]){
ll val=1,ti=0;
while(val*i<=n) val*=i,ti++;
mp[i]=ti;
}
// for(auto pa:mp) cout<<pa.first<<" : "<<pa.second<<endl;
mint res=1;
for(auto pa:mp) res*=mint(pa.first).pow(pa.second);
cout<<res<<endl;
return 0;
}
mugen_1337