Cod sursa(job #789858)
Utilizator | Banu Cristian cbanu96 | Data | 19 septembrie 2012 17:48:34 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <iostream>
#include <fstream>
#define MOD 1999999973
using namespace std;
int main()
{
unsigned int i, n, p;
long long sol = 1, x;
ifstream f("lgput.in");
f >> n >> p;
x = n;
for ( i = 0; (1<<i) <= p; i++)
{
if (((1<<i) & p) > 0)
sol = (sol * x) % MOD;
else
x = (x*x) % MOD;
}
f.close();
ofstream g("lgput.out");
g << sol << '\n';
g.close();
return 0;
}