Cod sursa(job #538727)
Utilizator | Data | 21 februarie 2011 21:02:34 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include<fstream>
using namespace std;
int RidicareLaPutere(int x,int n)
{
int p=1;
while(n>0)
{
if (n & 1)
{
p=((p%1999999973)*(x%1999999973))%1999999973;
n--;
}
x=((x%1999999973)*(x%1999999973))%1999999973;
n=n>>1;
}
return p ;
}
int main()
{
int put;
int n,p;
ifstream fin("lgput.in");
fin>>n>>p;
fin.close();
put=RidicareLaPutere(n,p);
put=put%1999999973;
ofstream fout("lgput.out");
fout<<put<<"\n";
fout.close();
return 0;
}