Submission #852157

#	Time	Username	Problem	Language	Result	Execution time	Memory
852157		Rafi22	Broken Device (JOI17_broken_device)	C++14	85 / 100	38 ms	2820 KiB

Anna

#include <bits/stdc++.h>
#include "Annalib.h"

#define ll long long
#define ld long double
#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
using namespace std;
//int inf=1000000007;
//int mod=1000000007;
//int mod1=998244353;

bool bad[157];
int res[157];

void Anna(int n,ll x,int k,int P[])
{
    srand(213769);
    vector<int>ord;
    for(int i=0;i<150;i++) ord.pb(i);
    random_shuffle(all(ord));
    for(int i=0;i<150;i++)
    {
        res[i]=0;
        bad[i]=0;
    }
    for(int i=0;i<k;i++) bad[P[i]]=1;
    for(int i=0;i<150;i+=2)
    {
        if(bad[ord[i]]||bad[ord[i+1]]) continue;
        if(x%3==0||x%3==2) res[ord[i]]=1;
        if(x%3==1||x%3==2) res[ord[i+1]]=1;
        x/=3;
    }
    for(int i=0;i<150;i++) Set(i,res[i]);
}

Bruno

#include <bits/stdc++.h>
#include "Brunolib.h"

#define ll long long
#define ld long double
#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
using namespace std;
//int inf=1000000007;
//int mod=1000000007;
//int mod1=998244353;

ll Bruno(int n,int a[])
{
    srand(213769);
    vector<int>ord;
    for(int i=0;i<150;i++) ord.pb(i);
    random_shuffle(all(ord));
    ll wyn=0,p=1;
    for(int i=0;i<150;i+=2)
    {
        if(a[ord[i]]==0&&a[ord[i+1]]==0) continue;
        if(a[ord[i]]==0&&a[ord[i+1]]==1) wyn+=p;
        if(a[ord[i]]==1&&a[ord[i+1]]==1) wyn+=2*p;
        p*=3;
    }
    return wyn;
}

• Subtask 1: 85 / 100