Cod sursa(job #1496547)

Utilizator DobosDobos Paul Dobos Data 5 octombrie 2015 10:18:15
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <bits/stdc++.h>
const int MOD = 1999999973;
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int n,nr;
void ridlog(int k)
{
    if(k <= 1)
        nr = n;
        else{
    ridlog(k/2);
    nr = nr*nr%MOD;
    if(k%2 != 0)
        nr *= n%MOD;
        }
}
int main()
{
    int k;
    fin >> n >> k;
    ridlog(k);
    fout << nr;
    return 0;
}