Cod sursa(job #1342846)
Utilizator | Peter Daiana daianapeter | Data | 14 februarie 2015 16:20:13 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.46 kb |
#include<fstream>
using namespace std;
int main()
{
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long n,p,baza,rez;
fin>>n>>p;
n=n%1999999973;
rez=baza=n;
if (p%2==1) rez=1; else {
rez=n*n;p=p/2;}
while(p>1)
if(p%2==0) {
rez=(rez%1999999973)*(rez%1999999973)%1999999973;
p=p/2;}
else
{rez=((rez%1999999973)*baza)%1999999973;
p--;
}
fout<<rez;
return 0;
}