Cod sursa(job #947558)
| Utilizator | Data | 7 mai 2013 19:56:52 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.46 kb |
#include<fstream>
#include<string.h>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
long long n, p, a, i, sol=1;
const int MODULO = 1999999973;
int main()
{
in>>n>>p;
/*a=n;
for(i=0; (1<<i)<=p; ++i)
{
if( ((1<<i)&p)>0)
sol=(sol*a)%MODULO;
a=(a*a)%MODULO;
}*/
while(p)
{
if(p%2==1)
sol=(sol*n)%MODULO;
n=(n*n)%MODULO;
p/=2;
}
out<<sol<<'\n';
in.close();
out.close();
return 0;
}
