Cod sursa(job #2104573)

Utilizator NToniBoSSNicolae Tonitza NToniBoSS Data 11 ianuarie 2018 20:38:58
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.42 kb
#include <fstream>
#define MOD 1999999973
using namespace std;
int lgput(int a,int b)
{
    if(b==0) return 1;
    if(b==1) return a;
    if(b%2) return ((long long)a*(lgput(((long long)a*a)%MOD,b/2)))%MOD;
    if(!(b%2)) return (lgput(((long long)a*a)%MOD,b/2))%MOD;
}
int main()
{
    int a,b;
    ifstream in("lgput.in");
    ofstream out("lgput.out");
    in>>a>>b;
    out<<lgput(a,b)<<endl;
    return 0;
}