Cod sursa(job #2225491)
| Utilizator | Data | 27 iulie 2018 12:54:22 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.47 kb |
#include <stdio.h>
using namespace std;
const int MOD = 1999999973;
int n,p;
int ridica(int x, int y)
{
if(y < 0) return ridica(1/x,-y) % MOD;
else if(y == 0) return 1;
else if(y == 1) return x;
else if(y & 1) return x % MOD *ridica(x*x,(y-1) / 2) % MOD;
else return ridica(x*x,y/2) % MOD;
}
int main()
{
freopen("lgput.in","r",stdin);
freopen("lgput.out","w",stdout);
scanf("%d %d\n",&n,&p);
int x = ridica(n,p);
printf("%d\n", x);
}
