Submission #131634

#	Time	Username	Problem	Language	Result	Execution time	Memory
131634		zoooma13	Broken Device (JOI17_broken_device)	C++14	0 / 100	59 ms	3720 KiB

Anna

#include "bits/stdc++.h"
#include "Annalib.h"
using namespace std;

void Anna( int N, long long X, int K, int P[] ){
    srand(8465554);
    vector <int> ord(N);
    iota(ord.begin() ,ord.end() ,0);
    random_shuffle(ord.begin() ,ord.end());

    vector <bool> bad(N, false);
    for(int i=0; i<K; i++)
        bad[P[i]] = true;

    int len = log2(X)+1 ,j = 0;
    vector <bool> enc(N ,0);
    for(int i=0; i<N-1; i++){
        if(bad[ord[i]])
            continue;
        bool bit = bool(X&(1LL<<j));
        if(!bit)
        { enc[ord[i]] = 1 ,enc[ord[i+1]] = 0; j++ ,i++; }
        else if(bit && !bad[i+1])
        { enc[ord[i]] = 1 ,enc[ord[i+1]] = 1; j++ ,i++; }
        if(j >= len)
            break;
    }
    for(int i=0; i<N; i++)
        Set(i ,enc[i]);
    //assert(false);
}

Bruno

#include "bits/stdc++.h"
#include "Brunolib.h"
using namespace std;

long long Bruno( int N, int A[] ){
    srand(8465554);
    vector <int> ord(N);
    iota(ord.begin() ,ord.end() ,0);
    random_shuffle(ord.begin() ,ord.end());

    int j = 0;
    long long X = 0LL;
    for(int i=0; i<N-1; i++){
        if(A[ord[i]])
        { X |= (1LL<<j)*A[ord[i+1]]; j++ ,i++; }
    }
    return X;
}

• Subtask 1: 0 / 100