Submission #2099161

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Source Code Expand

#include <bits/stdc++.h>
typedef long long ll;
const int INF = 1e9;
const int MOD = 1e9+7;
const ll LINF = 1e18;
using namespace std;
 
#define dump(x)  cout << #x << " = " << (x) << endl;
#define YES(n) cout << ((n) ? "YES" : "NO"  ) << endl
#define Yes(n) cout << ((n) ? "Yes" : "No"  ) << endl
#define POSSIBLE(n) cout << ((n) ? "POSSIBLE" : "IMPOSSIBLE"  ) << endl
#define Possible(n) cout << ((n) ? "Possible" : "Impossible"  ) << endl
 
#define SANKOU(n,a,b) cout << ((n) ? (#a) : (#b) ) << endl
 
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) for(int i=0;i<(n);++i)
#define REPR(i,n) for(int i=n;i>=0;i--)
 
#define FOREACH(x,a) for(auto& (x) : (a) )
 
#define WFA(d,v) REP(k,v)REP(i,v)REP(j,v)d[i][j]=min(d[i][j],d[i][k]+d[k][j])
 
#define SCOUT(x) cout<<(x)<<" "
#define ENDL cout<<endl
 
#define VECCIN(x) for(auto&youso_: (x) )cin>>youso_
#define VECIN2(x,y) REP(i,x.size())cin>>x[i]>>y[i]
#define VECCOUT(x) for(auto&youso_: (x) )cout<<youso_<<" ";cout<<endl
 
#define ALL(obj) (obj).begin(),(obj).end()
 
#define EXIST(n,x) (find(ALL(n),x)!=n.end())
#define UNIQUE(obj) sort(ALL( obj )); obj.erase(unique(ALL(obj)),obj.end())
#define COUT(x) cout<<(x)<<endl
void CINT(){}
template <class Head,class... Tail>
void CINT(Head&& head,Tail&&... tail){
    cin>>head;
    CINT(move(tail)...);
}
#define CIN(...) int __VA_ARGS__;CINT(__VA_ARGS__)
#define SCIN(...) string __VA_ARGS__;CINT(__VA_ARGS__)
 
//#include <boost/multiprecision/cpp_int.hpp>
//using namespace boost::multiprecision; // cpp_int
 
#define P pair<int,int>
#define V vector<ll>
#define M map<int,int>
#define S set<int>
#define L list<int>
 
#define pb(a) push_back(a)
#define mp make_pair

S Eratosthenes(int n){
  S set_;
  FOR(i,2,n+1)set_.insert(i);
  FOREACH(s,set_){
    if(s>sqrt(n))break;
    FOREACH(ss,set_){
      if(ss>s&&ss%s==0)set_.erase(ss);
    }
  }
  return set_;
}

int main(){

  CIN(n);
  S set_ = Eratosthenes(n);
  V v;
  FOREACH(s,set_)v.pb(s);

  V soin_all(set_.size());
  int ii=0;
  FOREACH(s,set_){
    FOR(i,1,INF){
      int ana = n/pow(s,i);
      if(ana==0)break;
      soin_all[ii]+=ana;
    }
    ii++;
  }

  ll ans=1;
  REP(i,set_.size()){
    if(soin_all[i]!=0){
      ans*=soin_all[i]+1;
      ans%=MOD;
    }
  }
  COUT(ans);

  return 0;
}

Submission Info

Judge Result