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Cod sursa(job #229626)
#include <fstream.h>
int main (){
int n,s,i,p,j,l,x,c,h,v[20];
ifstream f("cifra.in");
f>>n;
s=0;
ofstream g("cifra.out");
for(i=1;i<=n;i++){
p=1;
c=1;
f>>l;
v[0]=p*l;
for (j=1;j<=l;j++){
p=p*l;
if(p>9)
p=p%10;
if(v[j]==v[0])
break;
else{
v[j]=p;
c=c+1;
}
}
h=l%c;
s=s+v[h];
if(s>9)
s=s%10;
g<<s<<"\n";
}
f.close();
g.close();
return 0;
}