Cod sursa(job #2576302)
Utilizator | Paul Orasan PaulOrasan | Data | 6 martie 2020 18:26:50 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.57 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
const int modulo=1999999973;
long long int n,p;
long long int calculare(long long int x,long long int k)
{
if (k==1)
return x;
if (k==0)
return 1;
if (k%2==0){
return (calculare(((x%modulo)*(x%modulo))%modulo,k/2))%modulo;
}
return ((x%modulo)*(calculare(((x%modulo)*(x%modulo))%modulo,(k-1)/2))%modulo)%modulo;
}
int main()
{
fin>>n>>p;
fin.close();
fout<<calculare(n,p);
fout.close();
return 0;
}