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Cod sursa(job #6375)
#include <stdio>
#include <math.h>
#include <conio.h>
void main ()
{
clrscr();
int T,nr,i,s,j,c,p;
std:ifstream f ("cifra.in");
std:ofstream g ("cifra.out");
f>>T;
for (i=1;i<=T;i++)
{
s=0;
f>>nr;
while (nr>=10)
{
nr=nr/10;
s=s+7;
s=s%10;
}
for (j=1;j<=nr;j++)
{
p=j;
if (p>4)
p=p%4;
c=pow(j,p);
c=c%10;
s+=c;
s=s%10;
}
g<<s<<endl;
}
}