Cod sursa(job #2581713)

Utilizator Catalin007Botezat Catalin Catalin007 Data 15 martie 2020 17:53:27
Problema Ridicare la putere in timp logaritmic Scor 30
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.51 kb
#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll a, b;
ll mod=1999999973;
ll putere(ll x, ll n ){
    if(n==0)
    return 1;
    if(n==1)
    return x%mod;
    if(n%2==0)
   {
      ll m=putere(x,n/2);
      return ((m%mod)*(m%mod))%mod;
   }
    {
       ll m=putere(x,(n-1)/2);
       return ((x%mod)*((m%mod)*(m%mod))%mod)%mod;
    }
}

int main() {
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");

    fin >> a >> b;
    fout<<putere(a, b);
    return 0;
}