Cod sursa(job #2623921)

Utilizator alexvali23alexandru alexvali23 Data 4 iunie 2020 10:04:23
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.64 kb
#include <iostream>
#include <fstream>

using namespace std;
const int MOD = 100019,
          NMAX = 10001;

ifstream f("puteri2.in");
ofstream g("puteri2.out");

int A[NMAX];

int powlg(int a, int p)
{
    long long x = a;
    int val = 1;
    while(p > 0)
    {
        if(p & 1)
            val = val * x % MOD;
        x = x * x % MOD;
        p >>= 1;
    }
    return val;
}

int main()
{
    int n, b, i;
    long long sum = 0;
    f >> n;
    for(i = 1; i <= n; i++)
        f >> A[i];
    for(i = 1; i <= n; i++)
    {
        f >> b;
        sum += powlg(A[i], b);
    }
    g << sum % MOD;
    return 0;
}