Cod sursa(job #2172798)

Utilizator SofeiAndreiSofei Andrei SofeiAndrei Data 15 martie 2018 17:57:11
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.35 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
#include <climits>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,p,x,X,i,m;
int main()
{
    f>>n>>p;
    m=1999999973;
    x=n;
    X=1;
    for(i=0;(1<<i)<=p;i++){
        if(((1<<i)&p)>0){
            X=(X*x)%m;
        }
        x=(x*x)%m;
    }
    g<<X;
}