Cod sursa(job #1152974)
| Utilizator | Data | 25 martie 2014 09:59:07 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.48 kb |
#include <fstream>
#define MOD 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int n, p;
long long exp(int x, int y)
{
if (!y) return 1;
else
if (y % 2) return (x % MOD)*(exp(x, y-1) % MOD) % MOD;
else
{
long long p2;
p2 = exp(x, y/2) % MOD;
return (p2 % MOD) * (p2 % MOD) % MOD;
}
}
int main()
{
f>>n>>p;
g<<exp(n, p)<<'\n';
f.close();
g.close();
return 0;
}
