Submission #100087

#	Time	Username	Problem	Language	Result	Execution time	Memory
100087		rocketninja7	Broken Device (JOI17_broken_device)	C++14	0 / 100	4 ms	540 KiB

Anna

#include "Annalib.h"
#include <vector>
using namespace std;

void Anna( int N, long long X, int K, int P[] ){
    bool broken[N];
    for(int i=0;i<N;i++){
        broken[i]=false;
    }
    for(int i=0;i<K;i++){
        broken[P[i]]=true;
    }
    vector<int> available;
    for(int i=0;i<N-2;i++){
        if(!broken[i]&&!broken[i+1]&&!broken[i+2]){
            available.push_back(i);
            i++;
        }
    }
    bool val[N];
    for(int i=0;i<N;i++){
        val[i]=false;
    }
    for(int i=0;i<available.size();i++){
        val[available[i]]=true;
    }
    for(int i=0;(1LL<<i)<=X;i+=2){
        if((1LL<<i)&X){
            val[available[i]+1]=true;
        }
        if((1LL<<(i+1))&X){
            val[available[i]+2]=true;
        }
    }
    for( int i = 0; i < N; i++ ){
        Set( i, val[i]?1:0 );
    }
}

Bruno

#include "Brunolib.h"
#include <vector>
using namespace std;

long long Bruno( int N, int A[] ){
    vector<int> available;
    for(int i=0;i<N;i++){
        if(A[i]==1){
            available.push_back(i);
            i+=2;
        }
    }
    long long ans=0;
    for(int i=0;i<available.size();i+=2){
        if(A[available[i]+1]){
            ans+=(1LL<<i);
        }
        if(A[available[i]+2]){
            ans+=(1LL<<(i+1));
        }
    }
    return ans;
}

Compilation message (stderr)

Anna.cpp: In function 'void Anna(int, long long int, int, int*)':
Anna.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<available.size();i++){
                 ~^~~~~~~~~~~~~~~~~

Bruno.cpp: In function 'long long int Bruno(int, int*)':
Bruno.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<available.size();i+=2){
                 ~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100