Submission #131745

#	Time	Username	Problem	Language	Result	Execution time	Memory
131745		MohamedAhmed04	Broken Device (JOI17_broken_device)	C++14	0 / 100	57 ms	3056 KiB

Anna

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

using namespace std ;

void Anna( int N, long long X, int K, int P[] )
{
	srand(123321) ;
	vector<int>v ;
	for(int i = 0 ; i < N ; ++i)
		v.push_back(i) ;
	random_shuffle(v.begin() , v.end()) ;
	int mark[N+1] ;
	for(int i = 0 ; i <= N ; ++i)
		mark[i] = 0 ;
	for(int i = 0 ; i < K ; ++i)
		mark[P[i]] = 1;
	int last = -1 ;
	for(int i = 0 ; i < N ; i += 2)
	{
		last = i+1 ;
		if(X == 0)
		{
			Set(v[i] , 0) ;
			Set(v[i+1] , 0) ;
			continue ;
		}
		int now = X % 3 ;
		X /= 3 ;
		if(now == 0 && mark[v[i+1]] == 0)
		{
			Set(v[i] , 0) ;
			Set(v[i+1] , 1) ;
			continue ;
		}
		if(now == 1 && mark[v[i]] == 0)
		{
			Set(v[i] , 1) ;
			Set(v[i+1] , 0) ;
			continue ;
		}
		if(now == 2 && mark[v[i]] == 0 && mark[v[i+1]] == 0)
		{
			Set(v[i] , 1) ;
			Set(v[i+1] , 1) ;
			continue ;
		}
		Set(v[i] , 0) ;
		Set(v[i+1] , 0) ;
	}
	if(last < N-1)
		Set(v[N-1] , 0) ;
}

Bruno

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

using namespace std ;

long long Bruno( int N, int A[] )
{
   srand(123321) ;
   vector<int>v ;
  for(int i = 0 ; i < N ; ++i)
    v.push_back(i) ;
  random_shuffle(v.begin() , v.end()) ;
  vector<int>v1 ;
   long long ans = 0ll ;
   for(int i = 0 ; i < N-1 ; i += 2)
   {
      if(A[v[i]] == 0 && A[v[i+1]] == 0)
        continue ;
      if(A[v[i]] == 0 && A[v[i+1]] == 1)
        v1.push_back(0) ;
      else if(A[v[i]] == 1 && A[v[i+1]] == 0)
        v1.push_back(1) ;
      else if(A[v[i]] == 1 && A[v[i+1]] == 1)
        v1.push_back(2) ;
   }
   reverse(v1.begin() , v1.end()) ;
   for(auto &i : v1)
      ans = ans * 3ll + i * 1ll ;
   return ans;    
}

• Subtask 1: 0 / 100