Submission #1018212

#	Time	Username	Problem	Language	Result	Execution time	Memory
1018212		TsotneSV	Secret (JOI14_secret)	C++14	0 / 100	312 ms	4452 KiB

secret

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

const int MAXN = 1005;
const int LVL=15;

int DAQ[LVL][MAXN],n;


void go(int l,int r,int lev,int A[]) {

    if(l == r) {
        DAQ[lev][l] = A[l];
        return;
    }

    int m = (l + r)>>1; 
    DAQ[lev][m] = A[m]; DAQ[lev][m+1] = A[m+1];

    for(int i=m-1;i>=l;i--) {
        DAQ[lev][i] = Secret(A[i],DAQ[lev][i+1]);
    } 

    for(int i=m+2;i<=r;i++) {
        DAQ[lev][i] = Secret(A[i],DAQ[lev][i-1]);
    }

    go(l,m,lev+1,A); 
    go(m+1,r,lev+1,A);

}

void Init(int N, int A[]) {

    n = N;

    go(0,n-1,0,A);

}

int f(int L,int R,int l,int r,int lev) {

    if(l == r) return DAQ[lev][L];

    int m = (l + r)>>1;

    if(m >= R) return f(L,R,l,m,lev+1);
    if(m+1 <= L) return f(L,R,m+1,r,lev+1);
    return Secret(DAQ[lev][L],DAQ[lev][R]);

}

int Query(int L, int R) {
    return f(L,R,0,n-1,0);
} 

• Subtask 1: 0 / 100