Cod sursa(job #2361910)

Utilizator baltoi.teodorTeodor Baltoi baltoi.teodor Data 2 martie 2019 20:15:41
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.35 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>
#define MOD 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
typedef long long ll;
int main()
{
    ll a,b,Nr=1;
    fin>>a>>b;
    while(b)
      {
          if(b%2) Nr*=a,Nr=Nr%MOD,b--;
          else while(!(b%2)) a*=a,a=a%MOD,b/=2;
      }
      fout<<Nr;
    return 0;
}