Cod sursa(job #658788)
| Utilizator | Data | 9 ianuarie 2012 16:22:10 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.4 kb |
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
unsigned long long a,y,c;
unsigned long long ridic(long long b)
{
if (b==1) return a;
if (b%2==0) return (ridic(b/2)%c)*(ridic(b/2)%c)%c;
if (b%2==1) return (ridic(b-1)*a)%c;
}
int main()
{
f>>a>>y;
c=1999999973;
a=a%c;
g<<ridic(y);
f.close();g.close();
return 0;
}
