Submission #69079

#	Time	Username	Problem	Language	Result	Execution time	Memory
69079		IvanC	Broken Device (JOI17_broken_device)	C++17	41 / 100	78 ms	4072 KiB

Anna

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

const int MAXN = 150;

static int possivel[MAXN],resposta[MAXN];

void Anna( int N, long long X, int K, int P[] ){

	memset(possivel,1,sizeof(possivel));
	memset(resposta,0,sizeof(resposta));
	possivel[N] = 0;

	for(int i = 0;i<K;i++) possivel[P[i]] = 0;

	deque<int> digitos;
	while(X != 0){
		digitos.push_back(X % 2);
		X /= 2;
	}
	for(int i = 0;i<100;i++) digitos.push_back(0);

	for(int i = 0;i+1<N && !digitos.empty();i+=2){
		if(digitos.front() == 0){
			if(!possivel[i+1]) continue;
			resposta[i] = 0;
			resposta[i+1] = 1;
			digitos.pop_front();
			if(!possivel[i] || digitos.front() != 0) continue;
			resposta[i] = 1;
			digitos.pop_front();
		}
		else{
			if(!possivel[i]) continue;
			resposta[i] = 1;
			resposta[i+1] = 0;
			digitos.pop_front();
		}
	}

	for(int i = 0;i<N;i++){
		Set( i, resposta[i] );
	}

}

Bruno

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

long long Bruno( int N, int A[] ){

	vector<int> digitos;
	long long ans = 0;

	for(int i = 0;i+1<N;i+=2){
		int numero = A[i] + 2*A[i+1];
		if(numero == 1){
			digitos.push_back(1);
		}
		else if(numero == 2){
			digitos.push_back(0);
		}
		else if(numero == 3){
			digitos.push_back(0);
			digitos.push_back(0);
		}
	}

	while(!digitos.empty() && digitos.back() == 0){
		digitos.pop_back();
	}
	for(int i = 0;i<digitos.size();i++){
		if(digitos[i]) ans += (1LL << i);
	}

	return ans;

}

Compilation message (stderr)

Bruno.cpp: In function 'long long int Bruno(int, int*)':
Bruno.cpp:27:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0;i<digitos.size();i++){
                ~^~~~~~~~~~~~~~~

• Subtask 1: 41 / 100