Cod sursa(job #1671940)
Utilizator | Data | 2 aprilie 2016 11:40:43 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.44 kb |
#include <iostream>
#include <fstream>
#define mod 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int a;
int n;
int putere(int a, int n)
{
if(n==0) return 1;
int semipow=putere(a,n/2);
semipow=((long long)semipow*semipow)%mod;
if(n%2==0) return semipow;
return ((long long)semipow*a)%mod;
}
int main()
{
fin>>a>>n;
fout<<putere(a,n);
return 0;
}