Cod sursa(job #2046112)
Utilizator | Data | 23 octombrie 2017 14:38:46 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <fstream>
#define P 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long put(long long n,long long p)
{
long long y=1;
while(p>1)
{
if(p%2==0)
p/=2;
else {
p=(p-1)/2;
y=(y*n)%P;
}
n=(n*n)%P;
}
return (n*y)%P;
}
int main()
{
long long n,p;
f>>n>>p;
g<<put(n,p);
return 0;
}