Cod sursa(job #2219113)
Utilizator | Data | 7 iulie 2018 12:27:22 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.41 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
double RidicareLaPutere(double x,int n)
{
double p=1;
while(n>0)
{
if (n%2!=0) // n este impar
{
p=p*x;
n--;
}
x=x*x;
n=n>>1; // sau n = n / 2
}
return p ;
}
int main()
{
int a,b,r;
f>>a>>b;
g<<RidicareLaPutere(a,b)%1999999973;
return 0;
}