Cod sursa(job #484138)
| Utilizator | Data | 12 septembrie 2010 13:55:40 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.55 kb |
#include <stdio.h>
using namespace std;
#define MOD 1999999973
int bin[1001];
long long n, p, rez = 1;
int i, j;
int main ()
{
FILE *f = fopen ("lgput.in","r");
FILE *g = fopen ("lgput.out","w");
fscanf (f,"%lld %lld", &n, &p);
while (p)
{
i ++;
bin[i] = p % 2;
p /= 2;
}
for (j=i; j>=1; --j)
{
rez = (rez * rez) % MOD;
if (bin[j])
rez = (rez * n) % MOD;
}
fprintf (g, "%lld\n", rez);
fclose (g);
fclose (f);
return 0;
}
