Cod sursa(job #2033269)
Utilizator | Tudor Maxim tudormaxim | Data | 6 octombrie 2017 15:47:48 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | c | Status | done |
Runda | Arhiva educationala | Marime | 0.52 kb |
#include <stdio.h>
#include <stdlib.h>
const int mod = 999999973;
int log_pow(int n, int p) {
int ans = 1;
while (p > 0) {
if (p & 1) ans = (ans * n) % mod;
n = (n * n) % mod;
p = p >> 1;
}
return ans;
}
int main(void) {
FILE *fin = fopen("lgput.in", "r");
FILE *fout = fopen("lgput.out", "w");
int n, p, ans;
fscanf(fin, "%d %d", &n, &p);
ans = log_pow(n, p);
fprintf(fout, "%d\n", ans);
fclose(fin);
fclose(fout);
return 0;
}