Cod sursa(job #1117277)
Utilizator | lorund lorund | Data | 23 februarie 2014 12:47:21 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.49 kb |
#include <cstdio>
#define MOD 1999999973
int pow(int x, int P);
int main()
{
int n, p;
freopen("lgput.in", "r", stdin);
freopen("lgput.out", "w", stdout);
scanf("%d %d", &n, &p);
printf("%d", pow(n, p));
}
int pow(int x, int P){
x %= MOD;
if (P>0){
int r = pow(x, P/2);
if (P%2){
return (((long long)r*(long long)r%MOD)*x)%MOD;
}
else{
return (r*r)%MOD;
}
}
return 1;
}