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Cod sursa(job #541569)
#include <iostream>
#include <fstream>
using namespace std;
int main()
{
int K,ap[10],i,d[22],a,j;
double N;
ifstream f;
ofstream g;
f.open("light2.in");
g.open("light2.out");
i=1;j=1;K=1;N=3;
for(i=0;i<=22;i++)
d[i]=0;
a=0;
f>>N>>K;
for(i=1;i<=N;i++)ap[i]=0;
for(i=1;i<=K;i++)
{f>>d[i];
for(j=1;j<=N;j++)
if(j%d[i]==0)ap[j]=!ap[j];
}
for(i=1;i<=N;i++)
if(ap[i]==1)a++;
g<<a;
f.close();
g.close();
return 0;
}