Cod sursa(job #798790)
Utilizator | Bogatu Adrian ciorile.chioare | Data | 17 octombrie 2012 12:14:01 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.44 kb |
#include <cstdio>
#define N_MOD 1999999973
long long lgput(long long n, long long p, long long m) {
if(!p)
return 1;
if(p & 1)
return (lgput(n * n, p >> 1, m) % m) * (n % m) % m;
else
return lgput(n * n, p >> 1, m) % m;
}
int main(void) {
long long n, p;
FILE *in = fopen("lgput.in", "r");
FILE *out = fopen("lgput.out", "w");
fscanf(in, "%lld%lld", &n, &p);
fprintf(out, "%lld\n", lgput(n, p, N_MOD));
return 0;
}