Submission #540767

#	Time	Username	Problem	Language	Result	Execution time	Memory
540767		amin	Secret (JOI14_secret)	C++14	0 / 100	469 ms	4788 KiB

secret

#include "secret.h"
#include<bits/stdc++.h>
using namespace std;



long n;
long u;
long a[130000];
map<pair<long,long>,long>m;
void build(long v,long tl,long tr)
{
 if(tl==tr)
 {
     return ;
 }
    long tm=(tl+tr)/2;
    long ans=a[tm];
    for(long i=tm-1;i>=tl;i--)
    {

        ans=Secret(a[i],ans);
        m[{i,tm}]=ans;
    }
    ans=a[tm+1];
     for(long i=tm+2;i<=tr;i++)
    {
        ans=Secret(ans,a[i]);

        m[{tm+1,i}]=ans;
    }
    build(v*2,tl,tm);
    build(v*2+1,tm+1,tr);

}
long get(long v,long tl,long tr,long l,long r)
{
    long tm=(tl+tr)/2;
    if(r<=tm)
    {
       return get(v*2,tl,tm,l,r);
    }
    if(l>tm)
    {
        return get(v*2+1,tm+1,tr,l,r);
    }
    long ans=Secret(m[{l,tm}],m[{tm+1,r}]);
    return ans;
}
void Init(int N, int A[]) {

  n=N;
  for(long i=0;i<N;i++)
  {
      a[i]=A[i];
      m[{a[i],a[i]}]=a[i];
  }
  build(1,0,n-1);
}

int Query(int L, int R) {
    if(L==R)
    {
        return a[L-1];

    }
    return get(1,0,n-1,L-1,R-1);

}

• Subtask 1: 0 / 100