Submission #366672

#	Time	Username	Problem	Language	Result	Execution time	Memory
366672		iliccmarko	Secret (JOI14_secret)	C++14	100 / 100	529 ms	8556 KiB

secret

#include <bits/stdc++.h>
#include "secret.h"
using namespace std;
#define ll long long
#define endl "\n"
#define INF 1000000000
#define LINF 1000000000000000LL
#define pb push_back
#define all(x) x.begin(), x.end()
#define len(s) (int)s.size()
#define test_case { int t; cin>>t; while(t--)solve(); }
#define single_case solve();
#define line cerr<<"----------"<<endl;
#define ios { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cerr.tie(NULL); }
#define mod 1000000007LL
const int N = 1005;
int a[N][N];
int arr[N];
int n;

void build(int l, int r)
{
    if(l==r||l==(r-1)||l>r) return;
    int mid = (l+r)/2;
    int val = arr[mid];
    for(int i = mid-1;i>=l;i--)
    {
        val = Secret(arr[i], val);
        a[i][mid] = val;
    }
    val = arr[mid+1];
    for(int i = mid+2;i<=r;i++)
    {
        val = Secret(val, arr[i]);
        a[mid+1][i] = val;
    }
    build(l, mid);
    build(mid+1, r);
}

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

int resi(int l, int r, int i, int j)
{
    int mid = (i+j)/2;
    if(l<=mid&&r>mid)
    {
        return Secret(a[l][mid], a[mid+1][r]);
    }
    if(r==mid) return a[l][mid];
    if(l==mid+1) return a[mid+1][r];
    if(l>mid) return resi(l, r, mid+1, j);
    else return resi(l, r, i, mid);
}

int Query(int l, int r)
{
    if(l==r) return arr[l];
    if(l==(r-1)) return Secret(arr[l], arr[r]);
    return resi(l, r, 0, n-1);
}

• Subtask 1: 100 / 100