Cod sursa(job #1344980)
Utilizator | Stanciulescu Andrei stanciuandrei | Data | 17 februarie 2015 09:59:19 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.43 kb |
#include <iostream>
#include <fstream>
#define mod 1999999973
using namespace std;
long power(int n, int p)
{
if (p == 0)
return 1;
if (p == 1)
return n;
if (p % 2 == 0)
return power(n*n, p / 2);
if (p % 2 == 1)
return power(n*n, (p - 1) / 2);
}
int main()
{
int n, p;
ifstream in("lgput.in");
in >> n >> p;
in.close();
ofstream out("lgput.out");
out << power(n, p)% mod;
out.close();
return 0;
}