Cod sursa(job #198892)
Utilizator | Data | 15 iulie 2008 18:51:26 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
using namespace std;
#include <iostream>
#include <fstream>
const long long D=1999999973;
long long putere(long long a, long long n){
if(n==0)
return 1;
if(n%2==0)
return putere(a*a%D,n/2)%D;
return a%D*putere(a*a%D,n/2)%D;
}
int main(){
long long n,p;
ifstream f("lgput.in");
ofstream g("lgput.out");
f>>n>>p;
g<<putere(n,p)<<"\n";
f.close();
g.close();
return 0;
}