Cod sursa(job #2231698)

Utilizator cosmin_bobeicaCosmin Bobeica cosmin_bobeica Data 15 august 2018 17:04:01
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator c Status done
Runda Arhiva educationala Marime 0.54 kb
#include <stdio.h>

#define mod 1999999973

long long log_pow(long long n, long long p) {
    
    if(p == 1)
        return n;
    if(p == 0)
        return 1;
    
    if(p % 2 == 0)
        return log_pow(n * n, p / 2) % mod;
    
    else
        return n * log_pow (n * n, p / 2 - 1) % mod;
    
    return 0;
}

int main(int argc, const char * argv[]) {
   
    freopen("lgput.in","r",stdin);
    freopen("lgput.out","w",stdout);
    
    long long n,p;
    
    scanf("%lld %lld", &n ,&p);
    printf("%lld",log_pow(n,p));
    
    return 0;
}