Cod sursa(job #1606293)

Utilizator TopiAlexTopala Alexandru TopiAlex Data 20 februarie 2016 08:59:34
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include <stdio.h>
#define MOD 1999999973

int n, p;

int main()
{
    freopen("lgput.in", "r", stdin);
    freopen("lgput.out", "w", stdout);

    scanf("%d%d", &n, &p);
    int r = 1;

    while (p > 1){
        if (p % 2 == 0){
            n = ((long long) (n*n)) % MOD;
            p /= 2;
        } else {
            r = ((long long) r*n) % MOD;
            p--;
        }
    }

    printf("%d\n", ((long long) n * r)%MOD);
    return 0;
}