Cod sursa(job #2173924)
Utilizator | Sirbu Radu-Mihai radumihaisirbu | Data | 16 martie 2018 09:42:41 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include <fstream>
using namespace std;
ifstream fin ("lgput.in");
ofstream fout ("lgput.out");
const int MOD = 1999999973;
int put (int x, int n)
{
if ( n == 0) return 1;
else if ( n == 1) return x % MOD;
else if ( n % 2 == 0) return put(x * x, n / 2) % MOD;
else return put(x * x, (n - 1)/ 2) % MOD;
}
int main()
{
int n, x;
fin >> n >> x;
fout << put (x, n);
return 0;
}