Cod sursa(job #1679145)
Utilizator | Evghenii Beriozchin Evghenii_Beriozchin | Data | 7 aprilie 2016 18:29:42 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.49 kb |
#include <iostream>
#include <fstream>
using namespace std;
long long power(long long n, long long p){
if (p==1) return n;
if (p>1999999973) p=p%1999999973;
if (p%2==1) {
long long q;
q=power(n,(p-1)/2);
return n*q*q;
} else { long long q;
q=power(n,p/2);
return q*q;
}
}
int main()
{
long long n,p;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
fin>>n>>p;
fout << power(n,p)% 1999999973 << endl;
return 0;
}