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Cod sursa(job #372337)
#include<fstream>
using namespace std;
int put(int a,int b);
int u(int a)
{
int u;
u=a%10;
return u;
}
int put(int a, int b)
{
int i,put=1;
for(i=1;i<=b;i++)
put=u(put)*u(a);
put=u(put);
return put;
}
int main()
{
int n,t,s,i,j,cont;
ifstream fin("cifra.in");
ofstream fout("cifra.out");
fin>>t;
for(cont=1;cont<=t;cont++)
{
fin>>n;
s=0;
for(i=1;i<=n;i++)
s=u(s)+put(i,i);
s=u(s);
fout<<s<<endl;
}
}