Cod sursa(job #1379138)
Utilizator | Data | 6 martie 2015 16:31:20 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.46 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long int a,n,k,i,sol;
int pl(long long int i,long long int n)
{
if (i==1)
{
return n;
}
else
{
if (i%2==0)
return pl(i/2,n*n%k);
else
return n*pl(i/2,n*n%k)%k;
}
}
int main()
{
k=1999999973;
fin>>n>>a;
sol=pl(a,n);
fout<<sol%k;
return 0;
}