Submission #131563

#	Time	Username	Problem	Language	Result	Execution time	Memory
131563		zoooma13	Broken Device (JOI17_broken_device)	C++14	0 / 100	3 ms	508 KiB

Anna

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

void Anna( int N, long long X, int K, int P[] ){
    X = (X<<1)|1;

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

    int len = log2(X)+1;
    for(int i=0; i<N-len+1; i++){
        bool ok = true;
        for(int j=0; j<len; j++)
            if(bool(X&(1LL<<j)) && bad[i+j])
                ok = false;
        if(ok){
            string enc(N ,'0');
            for(int j=0; j<len; j++)
                enc[i+j] ^= bool(X&(1LL<<j));
            for(int i=0; i<N; i++)
                Set(i ,enc[i]=='1');
            return;
        }
    }
    assert(false);
}

Bruno

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

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

• Subtask 1: 0 / 100