Cod sursa(job #1671907)
Utilizator | Data | 2 aprilie 2016 11:32:20 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <iostream>
#include <fstream>
#define modul 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int mod(int n, int p)
{
if(p==0)
return 1;
if(p%2==1)
return mod(((long long)n*n)%modul,p/2%modul)*(n%modul);
if(p%2==0)
return mod(((long long)n*n)%modul,p/2%modul);
}
int x,y;
int main()
{
fin>>x>>y;
fout<<mod(x,y);
fin.close();
fout.close();
return 0;
}