Cod sursa(job #874811)
Utilizator | Data | 9 februarie 2013 12:49:28 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.41 kb |
#include<iostream>
#include<fstream>
using namespace std;
#define M 1999999973
long lgput(int n, int p)
{
long a=1;
while(p)
{
if(p%2)
{
a=(a*n) % M;
--p;
}
else
{
n=(n*n) % M;
p/=2;
}
}
return a;
}
int main()
{
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long n;
int p;
fin>>n>>p;
fout<<lgput(n,p);
return 0;
}