Submission #542653

#	Time	Username	Problem	Language	Result	Execution time	Memory
542653		new_acc	Secret (JOI14_secret)	C++14	100 / 100	451 ms	4540 KiB

secret

#include "secret.h"
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
typedef long long ll;
const int N=1e3+10;
const int L=13;
ll jj[N][L];
int t[N],n;
void dc(int a,int b,int x){
  int sr=(a+b)>>1;
  jj[sr][x]=t[sr];
  if(a==b) return;
  for(int i=sr-1;i>=a;i--) jj[i][x]=Secret(t[i],jj[i+1][x]);
  jj[sr+1][x]=t[sr+1];
  for(int i=sr+2;i<=b;i++) jj[i][x]=Secret(jj[i-1][x],t[i]);
  dc(a,sr,x+1),dc(sr+1,b,x+1);
}
pair<int,int> zn(int a,int b,int p=1,int k=n,int x=1){
  int sr=(p+k)>>1;
  if(a<=sr and b>=sr) return {x,sr};
  if(a<=sr) return zn(a,b,p,sr,x+1);
  return zn(a,b,sr+1,k,x+1);
}
void Init(int NN,int A[]){
  n=NN;
  for(int i=1;i<=n;i++) t[i]=A[i-1];
  dc(1,n,1);
}
int Query(int a,int b){
    a++,b++;
    if(a==b) return t[a];
    pair<int,int> curr=zn(a,b);
    if(b==curr.se) return jj[a][curr.fi];
    return Secret(jj[a][curr.fi],jj[b][curr.fi]);
}

• Subtask 1: 100 / 100