Cod sursa(job #3184100)
Utilizator | Data | 14 decembrie 2023 13:02:28 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.41 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int a, b, k=1999999973;
int rid(int a, int b)
{
if(b==0) return 1;
else
if(b%2==0)
{
return (rid(a%k, b/2)*rid(a%k, b/2))%k;
}
else
if(b%2==1)
{
return (rid(a%k, b-1)*a%k)%k;
}
}
int main()
{
fin>>a>>b;
fout<<rid(a, b);
return 0;
}