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Cod sursa(job #696424)
#include<fstream>
using namespace std;
fstream f("iepuri.in",ios::in);
fstream g("iepuri.out",ios::out);
long long T,X,Y,Z,A,B,C,N;
void calcul_nr_iepuri()
{
long long i,nr=0;
for(i=3;i<=N;i++)
{
nr=A*Z+B*Y+C*X;
X=Y;
Y=Z;
Z=nr;
}
g<<nr<<endl;
}
int main()
{
long i;
f>>T;
for(i=1;i<=T;i++)
{
f>>X>>Y>>Z>>A>>B>>C>>N;
calcul_nr_iepuri();
}
f.close();
g.close();
return 0;
}