Cod sursa(job #492918)
| Utilizator | Data | 16 octombrie 2010 12:54:51 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.49 kb |
//Arhiva educationala, Ridicare la putere in timp logaritmic
#include<stdio.h>
#define MOD 1999999973
long long putere(long long a, long long b) {
int p, p2;
p = 1;
p2 = a;
while (b) {
if (b&1) {
p = (p*p2)%MOD;
}
b>>=1;
p2 = (p2*p2)%MOD;
}
return p;
}
long long a,b;
int main(){
FILE *f = fopen("lgput.in","r");
fscanf(f,"%lld %lld",&a, &b);
fclose(f);
FILE *g = fopen("lgput.out","w");
fprintf(g,"%lld",putere(a,b));
fclose(g);
return 0;
}
