Cod sursa(job #1032971)
Utilizator | Data | 16 noiembrie 2013 11:43:38 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.37 kb |
#include<iostream>
#include<fstream>
using namespace std;
long x,n;
long long p;
long long putere(long x,long n)
{
if(n==1) return x;
else p=putere(x,n/2);
if(n%2==0) return (p*p)%1999999973;
else return ((p*p%1999999973)*x)%1999999973;
}
int main()
{
ifstream f("lgput.in");
ofstream g("lgput.out");
f>>x>>n;
g<<putere(x,n);
}