Cod sursa(job #2576753)

Utilizator iliescualexiaIliescu Alexia iliescualexia Data 6 martie 2020 22:19:41
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda imded Marime 0.48 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int n,m,p;
int rid(int a,int b)
{
    if(b==0)
    {
        return 1;
    }
    else
    {
        if(b%2==1)
        {
            return (a%m*rid(a,b-1)%m)%m;
        }
        else
        {
            return (rid(a,b/2)%m*rid(a,b/2)%m)%m;
        }
    }
}
int main()
{
    fin>>n>>p;
    m=1999999973;
    fout<<rid(n,p);
    return 0;
}