Cod sursa(job #635398)

Utilizator RarRaresNedelcu Rares RarRares Data 19 noiembrie 2011 11:07:24
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.84 kb
#include <iostream>
#include <deque>
#include <cstdio>
using namespace std;

const long long mod = 1999999973;

int main()
{
    freopen("lgput.in", "r", stdin);
    freopen("lgput.out", "w", stdout);
//    deque<int> a;
    //666013
    long long x, p, rez = 1;
//    int a[250];

    cin >> x >> p;
    while(p)
    {
        if(p%2)
            rez = (rez*x)%mod;
        x = (x*x)%mod;
        p = p/2;
//        a.push_back(p%2);
//        a[i++] = p%2;
    }
//    for(deque<int>::iterator it = a.begin(); it < a.end(); it++)
//        cout << *it;
//    for(int j = i-1; j >= 0; j--)
//        cout << a[j];
//    cout << '\n\n';
//    for(deque<int>::iterator it = a.begin(); it < a.end(); it++)
//    {if(*it)
//        rez = (rez * x)%mod;
//        x = (x * x) % mod;
//    }
    cout << rez;
    return 0;
}