Cod sursa(job #1612840)
Utilizator | c0mrade c0mrade | Data | 25 februarie 2016 02:36:39 |
---|---|---|---|
Problema | Cifra | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.62 kb |
#include<fstream>
#include<string.h>
using namespace std;
ifstream in("cifra.in");
ofstream out("cifra.out");
int T,i,v[101];
char n[101];
int Pow(int n)
{
int p=n,sol=1;
while(p!=0)
{
if(p%2==1)
sol=(n*sol)%10;
n=(n*n)%10;
p/=2;
}
return sol;
}
int main()
{
in>>T;
for(i=1;i<=100;i++)
v[i]=(v[i-1]+Pow(i))%10;
while(T--)
{
in>>(n+1);
int s=strlen(n+1);
if(s==1)
out<<v[n[s]-'0']<<"\n";
else
out<<v[n[s]-'0'+(n[s-1]-'0')*10]<<"\n";
}
return 0;
}