Cod sursa(job #523089)
| Utilizator |  Dascalu Alexandru Dascalualex1994 |
Data | 17 ianuarie 2011 09:26:36 |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.27 kb |
#include<fstream.h>
ifstream f("lgput.in");
ofstream g("lgput.out");
long long a,n;
long long s(long long a, long long n)
{long long q;
if(n==0) return 1;
q=s(a,n/2);
q=q*q;
if(n%2) q=q*a;
return q;}
int main(){
f>>a>>n;
g<<s(a,n)<<'\n';
g.close();
return 0;}