Cod sursa(job #600111)
Utilizator | Data | 30 iunie 2011 16:26:10 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include <iostream>
#include <fstream>
#define modulo 1999999973
using namespace std;
long long n, p;
long bit(long long x, long long y){
if(y&1) return x;
return 1;
}
long pow(long long x, long long y){
if(y>0){
long z=pow(x,y >> 1);
return bit(x,y)*z*z;//%modulo;
}
return 1;
}
int main()
{
ifstream in("lgput.in");
in >> n >> p;
in.close();
ofstream out("lgput.out");
out << pow(n, p);
out.close();
return 0;
}