Cod sursa(job #2488665)

Utilizator butnaru_vlad2003Butnaru Vlad butnaru_vlad2003 Data 7 noiembrie 2019 13:25:19
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.29 kb
Raporteaza aceasta sursa 
#include<bits/stdc++.h>
using namespace std;
ifstream in("lgput.in");
ofstream out ("lgput.out");
int main ()
{
    int a,b;
    in>>a>>b;
    int rez = 1;
    while (b)
    {
        if (b&1)
            rez*=a;
        a*=a;
        b>>=1;
    }
    out<<rez;
    return 0;
}