Cod sursa(job #1821067)
Utilizator | Data | 2 decembrie 2016 15:47:38 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.43 kb |
#include <fstream>
using namespace std;
#define m 1999999973
long power(long n, long p){
long i,sol=1;
for (i=0;(1<<i)<=p;++i){
if (((1<<i)&p)>0)
sol=(sol*n) %m;
n=(n*n) %m;
}
return sol;
}
int main()
{
ifstream f("lgput.in");
ofstream g("lgput.out");
long n,p;
f>> n >> p;
g << power(n,p);
f.close();
g.close();
return 0;
}