Cod sursa(job #864094)
Utilizator | Andrei Comaneci acom | Data | 24 ianuarie 2013 17:46:55 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include<fstream>
using namespace std;
#define Mod 1999999973
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,p;
long long exp(int k)
{
long long t;
if (k==1) return n;
else if (k%2==0)
{
t=exp(k>>1);
return ((t%Mod)*(t%Mod))%Mod;
}
else return (((exp(k-1))%Mod)*n)%Mod;
}
int main()
{
f>>n>>p;
g<<exp(p)<<'\n';
return 0;
}