Cod sursa(job #362792)
Utilizator | Data | 10 noiembrie 2009 23:42:52 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include <stdio.h>
#define MOD 1999999973
unsigned int log_exp(unsigned int n, unsigned int p)
{
if(p == 1) return n;
else
{
int nextexp = log_exp(n, p / 2) % MOD;
if(p % 2 == 1) return (((n * nextexp) % MOD) * nextexp) % MOD;
else return (nextexp * nextexp) % MOD;
}
}
int main()
{
freopen("lgput.in", "r", stdin);
freopen("lgput.out", "w", stdout);
unsigned int n, p;
scanf("%u%u", &n, &p);
printf("%u\n", log_exp(n, p));
return 0;
}