Cod sursa(job #936581)
Utilizator | Data | 7 aprilie 2013 19:43:05 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 30 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include<iostream>
#include<fstream>
using namespace std;
int n,p;
long long pow ( int a, int b )
{
if(b==1) return a%1999999973;
if(b%2==0)
{
long long r;
r= pow(a,b/2)%1999999973;
return (r*r)%1999999973;
}
else
{
long long r;
r= pow(a,b/2)%1999999973;
return (r*r*a%1999999973)%1999999973;
}
}
int main()
{
ifstream f("lgput.in");
ofstream g("lgput.out");
f>>n>>p;
if(p==0)
g<<1;
else
g<<pow(n,p)%1999999973;
return 0;
}