Cod sursa(job #2043679)
| Utilizator | Data | 20 octombrie 2017 12:49:44 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 30 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.49 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
const int c=1999999973;
long long exp_lg (long long x ,long long p)
{
long long z;
if (p==1) return x%c;
if (p==0) return 1;
if (p==2) return (x*x)%c;
z=exp_lg(x,p/2);
if (p%2==0) return (z*z)%c;
else return (z*z*x)%c;
}
int main()
{
long long x,p;
fin>>x>>p;
//fout<<x<<" "<<p;
fout<<exp_lg(x,p);
return 0;
}
