Submission #1094763

#	Time	Username	Problem	Language	Result	Execution time	Memory
1094763		asli_bg	Secret (JOI14_secret)	C++11	100 / 100	327 ms	4484 KiB

secret

#pragma GCC optimize("O3,unroll-loops")
 
#include <bits/stdc++.h>
using namespace std;
 
//#define int long long
 
#define fi first
#define se second
#define all(x) x.begin(),x.end()
#define pb push_back
 
#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)
#define cont(x) {for(auto el:x) cout<<el<<' ';cout<<endl;}
#define contp(x) {for(auto el:x) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl;}
#define sp <<" "<<
#define mid (l+r)/2
#define endl '\n'
 
#define DEBUG(X) {cout<<#X<<' '<<(X)<<endl;}
 
#define carp(x,y) ((x%MOD)*(y%MOD))%MOD
#define topla(x,y) ((x%MOD)+(y%MOD))%MOD
 
typedef vector<int> vi;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<bool> vb;
 
const int MAXN=1e3+5;
const int MAXK=15;
 
#include "secret.h"
 
vi a;
int n;
int tut[MAXK][MAXN];
int mask[MAXN];
 
void dq(int l,int r,int lev){
    if(l>=r) return;
    tut[lev][mid]=a[mid];
    tut[lev][mid+1]=a[mid+1];
    for(int i=mid-1;i>=l;i--){
        tut[lev][i]=Secret(a[i],tut[lev][i+1]);
    }
    for(int i=mid+2;i<=r;i++){
        tut[lev][i]=Secret(tut[lev][i-1],a[i]);
    }
 
    FORE(i,mid+1,r+1) mask[i]=mask[i]^(1<<lev);
 
    dq(l,mid,lev+1);
    dq(mid+1,r,lev+1);
}
 
 
void Init(int N, int A[]) {
    n=N;
    a.pb(0);
    FOR(i,N){
        a.pb(A[i]);
    }
    dq(1,n,1);
}
 
int Query(int l, int r) {
    l++;r++;
    if(l==r) return a[l];
    int bits=__builtin_ctz(mask[l]^mask[r]);
    return Secret(tut[bits][l],tut[bits][r]);
    return 0;
}

• Subtask 1: 100 / 100