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Cod sursa(job #171234)
#include<iostream.h>
#include<fstream.h>
#include<stdlib.h>
int power(int a, int b){
int x=1;
for(b=1; b<=a; b++)
x*=a;
return x;
}
int main()
{int i,j,cifra,a,b; char t[100], n[100];
ifstream citire("cifra.in", ios::in);
ofstream scriere("cifra.out", ios::out);
citire.getline(t, sizeof(t));
a=atoi(t);
for (i=1; i<=a; i++)
{citire.getline(n, sizeof(n));
b=atoi(n);
cifra=0;
for (j=1; j<=b; j++)
{cifra=cifra+power(j,j)%10;
cifra=cifra%10;}
scriere<<cifra<<'\n';
}
return 0;
}