Submission #53188

#	Time	Username	Problem	Language	Result	Execution time	Memory
53188		okaybody10	Secret (JOI14_secret)	C++98	100 / 100	628 ms	8612 KiB

secret

#include <bits/stdc++.h>
#include "secret.h"
using namespace std;
int n,B[1006],ans[1006][1006];
void _init(int s,int e)
{
    int m=(s+e)/2;
    if(s==e){
        ans[m][m]=B[m];
        return;
    }
    ans[m][m]=B[m];
    ans[m+1][m+1]=B[m+1];
    for(int i=m-1;i>=s;i--) ans[i][m]=Secret(B[i],ans[i+1][m]);
    for(int i=m+2;i<=e;i++) ans[m+1][i]=Secret(ans[m+1][i-1],B[i]);
    _init(s,m);
    _init(m+1,e);
}
void Init(int N, int A[]) {
    n=N;
    for(int i=0; i<n; i++) B[i]=A[i];
    _init(0,n-1);
}
int solve(int l,int r,int s,int e)
{
    int m=(s+e)/2;
    if(l<=m && m+1<=r) return Secret(ans[l][m],ans[m+1][r]);
    if(r<=m) return solve(l,r,s,m);
    else return solve(l,r,m+1,e);
}
int Query(int l, int r) {
    if(l==r) return B[r];
    return solve(l,r,0,n-1);
}

• Subtask 1: 100 / 100