Pagini recente » Cod sursa (job #2134335) | Cod sursa (job #610183) | Cod sursa (job #2699512) | Cod sursa (job #1612805)
#include<fstream>
#include<string.h>
using namespace std;
ifstream in("cifra.in");
ofstream out("cifra.out");
int n,v[101];
char s[101];
int lg_pow(int x)
{
int p=x,pow=1;
while(p)
{
if(p%2==1) pow=(x*pow)%10;
x=(x*x)%10;
p/=2;
}
return pow;
}
int main()
{
in>>n;
for(int i=1;i<=100;++i)
{
v[i]=(v[i-1]+lg_pow(i))%10;
}
while(n--)
{
in>>(s+1);
int l=strlen(s+1);
if(l==1) out<<v[s[l]-'0']<<'\n';
else out<<v[(s[l]-'0')+(s[l-1]-'0')%10]<<'\n';
}
return 0;
}