Submission #1018239

#	Time	Username	Problem	Language	Result	Execution time	Memory
1018239		TsotneSV	Secret (JOI14_secret)	C++14	100 / 100	317 ms	4692 KiB

secret

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

const int maxn = 1000;
const int maxlvl = 15;

int n;
int DVC[maxlvl][maxn];

void create(int lvl,int l,int r,int A[]) {

    if(l == r) {
        DVC[lvl][l] = A[l];
        return;
    }

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

    DVC[lvl][m] = A[m]; 

    for (int i = m - 1; i >= l; i--) DVC[lvl][i] = Secret(A[i], DVC[lvl][i + 1]);

    DVC[lvl][m+1] = A[m+1];

    for (int i = m + 2; i <= r; i++) DVC[lvl][i] = Secret(DVC[lvl][i - 1], A[i]);

    create(lvl+1,l,m,A); 
    create(lvl+1,m+1,r,A);

}

int get(int lvl,int l,int r,int L,int R) {

    if(l == r) return DVC[lvl][L];

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

    if(R <= m) return get(lvl+1,l,m,L,R);
    if(L >= m+1) return get(lvl+1,m+1,r,L,R);
    return Secret(DVC[lvl][L],DVC[lvl][R]);

}

void Init(int N, int A[]) {
    n = N;
    create(0,0,n-1,A);
}

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

• Subtask 1: 100 / 100