Cod sursa(job #1969963)

Utilizator raduzxstefanescu radu raduzx Data 18 aprilie 2017 19:16:26
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.39 kb
#include <fstream>

using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
typedef long long ll;
#define mod 1999999973
ll lgput(ll a,ll b)
{
    ll c=1;
    while(b)
    {
        if(b%2==1)
            {c*=a;c%=mod;}
        a*=a;
        b/=2;
        a%=mod;
    }
    return c;
}
int main()
{
    int a,b;
    f>>a>>b;
    g<<lgput(a,b);
    return 0;
}