Cod sursa(job #2561162)
Utilizator | Nastasa Stefan-Alexandru RedPipper | Data | 28 februarie 2020 17:08:14 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include <fstream>
#define MODULO 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long lgput(long long a, long long n)
{
if(n==0)return 1;
else if(n==1)return a;
else if(n%2==0)return lgput((a*a)%MODULO,n/2);
else return a*lgput((a*a)%MODULO,(n-1)/2);
}
long long a,b;
int main()
{
fin>>a>>b;
fout<<lgput(a,b)%MODULO;
return 0;
}