oj.uz

Submission #361539

# Submission time Handle Problem Language Result Execution time Memory
361539 2021-01-30T13:20:38 Z shahriarkhan Secret (JOI14_secret) C++14
100 / 100
 515 ms 4516 KB 
#include "secret.h"
#include<bits/stdc++.h>
using namespace std ;

const int mx = 1024 ;

int pre[mx][mx] , a[mx] , n ;

void dnc(int l , int r , int d)
{
    if(l+1==r) return ;
    if(l==r) return ;
    int mid = (l+r)/2 ;
    pre[d][mid] = a[mid] ;
    for(int i = mid - 1 ; i >= l ; --i)
    {
        pre[d][i] = Secret(a[i],pre[d][i+1]) ;
    }
    pre[d][mid+1] = a[mid+1] ;
    for(int i = mid + 2 ; i <= r ; ++i)
    {
        pre[d][i] = Secret(pre[d][i-1],a[i]) ;
    }
    dnc(l,mid,d+1) , dnc(mid+1,r,d+1) ;
}

void Init(int N , int A[])
{
    n = N ;
    for(int i = 0 ; i < N ; ++i) a[i] = A[i] ;
    dnc(0,N-1,0) ;
}

int dq_c(int l , int r , int ql , int qr , int d)
{
    int mid = (l+r)/2 ;
    if((ql<=mid&&qr>mid))
    {
        return Secret(pre[d][ql],pre[d][qr]) ;
    }
    if(qr==mid) return pre[d][ql] ;
    if(qr<=mid) return dq_c(l,mid,ql,qr,d+1) ;
    else return dq_c(mid+1,r,ql,qr,d+1) ;
}

int Query(int L , int R)
{
    if(L==R) return a[L] ;
    if(L+1==R) return Secret(a[L],a[R]) ;
    return dq_c(0,n-1,L,R,0) ;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 2412 KB Output is correct - number of calls to Secret by Init = 3578, maximum number of calls to Secret by Query = 1
2 Correct 143 ms 2412 KB Output is correct - number of calls to Secret by Init = 3586, maximum number of calls to Secret by Query = 1
3 Correct 143 ms 2412 KB Output is correct - number of calls to Secret by Init = 3595, maximum number of calls to Secret by Query = 1
4 Correct 502 ms 4456 KB Output is correct - number of calls to Secret by Init = 7969, maximum number of calls to Secret by Query = 1
5 Correct 507 ms 4352 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
6 Correct 515 ms 4448 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
7 Correct 507 ms 4516 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
8 Correct 502 ms 4460 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
9 Correct 506 ms 4460 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
10 Correct 510 ms 4332 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1