Cod sursa(job #1470293)
Utilizator | Badiu Anca ancabd | Data | 10 august 2015 18:57:37 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.53 kb |
#include <fstream>
using namespace std;
#define m 1999999973
int n, p;
long long ridicare(int x, int y)
{
if(y == 0)
return 1;
if(y == 1)
return x % m;
if(y % 2 == 0) {
long long aux = ridicare(x, y / 2);
return (aux * aux) % m;
}
if(y % 2 == 1)
return (x * ridicare(x , y - 1)) % m;
}
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int main()
{
fin >> n>> p;
fout << ridicare(n, p);
fin.close();
fout.close();
return 0;
}