Cod sursa(job #1487837)
Utilizator | Data | 17 septembrie 2015 15:33:27 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include <iostream>
using namespace std;
#include<fstream>
unsigned mod=100000007;
ifstream f("lgput.in");
ofstream g("lgput.out");
int putere(int x,int p)
{
if(p==0)
return 1;
long long aux=putere(x,p/2);
if(p%2==0)
return aux*aux%mod;
return x*aux*aux%mod;
}
int main()
{
int a,p;
f>>a>>p;
g<<putere(a,p);
return 0;
}