Cod sursa(job #782976)
Utilizator | Data | 1 septembrie 2012 12:37:44 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include<fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
#define MOD 1999999973
int n,p;
int putere(int n, int p)
{
int x;
if(p==0)
return 1;
if(p%2==0)
{
x=putere(n,p>>1)%MOD;
return (x*x)%MOD;
}
return (n*putere(n,p-1)%MOD);
}
int main ()
{
int r;
f>>n;
f>>p;
r=putere(n,p);
g<<r;
f.close();g.close();
return 0;
}