Cod sursa(job #1735887)
Utilizator | Alexandru Martiniuc Rocamadour1497 | Data | 31 iulie 2016 15:18:11 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.41 kb |
#include <fstream>
#include <iostream>
#define N 1999999973
using namespace std;
long long n,p;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long ptrlog(long long n,long long p)
{
if(p==0) return 1;
if(p==1) return n;
else
if(p%2==0) return ptrlog(n*n,p/2)%N;
else
return n*ptrlog(n*n,(p-1)/2)%N ;
}
int main()
{
f>>n>>p;
g<<ptrlog(n,p);
return 0;
}