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Cod sursa(job #96750)
#include<stdio.h>
#include<math.h>
int t,s[1000];
long n,i,j,a[1000],max=0;
int main()
{
freopen("cifra.in","r",stdin);
freopen("cifra.out","w",stdout);
scanf("%i",&t);
max=0;
for(i=1;i<=t;i++){
int x;
scanf("%ld",&x);
a[i]=x;
if(x>max) max=x;
}
s[1]=1;
for(i=2;i<=max;i++) {
int y;
y=pow(i,i);
y=y%10;
s[i]=(s[i-1]+y)%10;
}
// printf("%i\n",s[i]);
for(i=1;i<=t;i++)
printf("%i\n",s[a[i]]);
return 0;
}