Cod sursa(job #1499345)

Utilizator radu_uniculeu sunt radu radu_unicul Data 10 octombrie 2015 15:24:54
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include<cstdio>
using namespace std;
long long int n,p;
long long int result;
long long solve(long long n,long long power)
{
    if(power==0) return 1;
    if(power==1) return n;
    long long rezultat=solve(n,power/2);
    if(power%2==0) return rezultat*rezultat;
    return rezultat*rezultat*n;
}
int main()
{
    FILE *fin,*fout;
    fin=fopen("lgput.in","r");
    fout=fopen("lgput.out","w");
    fscanf(fin,"%lld%lld",&n,&p);
    fprintf(fout,"%lld",solve(n,p));
}