Cod sursa(job #1537975)

Utilizator vancea.catalincatalin vancea.catalin Data 28 noiembrie 2015 12:41:33
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.45 kb
#include<iostream>
#include<fstream>
using namespace std;
fstream fin("lgput.in",ios::in),fout("lgput.out",ios::out);
int x,n,r=1999999973;
long long put(int a,int b)
{
    long long v;
    if(b==0)
    {
        return 1;
    }
    if(b%2==0)
    {
        v=put(a,b/2)%r;
        return v*v %r;
    }
    return a*put(a,b-1)%r;
}
int main()
{
    int a,b;
    long long c;
    fin>>a>>b;
    a=a%r;
    c=put(a,b);
    fout<<c%r;
}