Cod sursa(job #2879313)
Utilizator | Data | 28 martie 2022 13:43:31 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 50 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.58 kb |
#include <fstream>
#define imp 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long n, p;
long long rez = 1;
long long puterelog(unsigned int n, unsigned int p)
{
if (p == 0)
return 1;
if (p % 2 == 0)
{
long long curent = puterelog(n, p/2);
return (curent * curent) % imp;
}
else
{
long long curent = puterelog(n, (p-1)/2);
return (curent * curent * n) % imp;
}
}
int main()
{
fin >> n >> p;
fout << puterelog(n, p);
return 0;
}