Cod sursa(job #1988936)
| Utilizator | Data | 5 iunie 2017 12:29:44 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.56 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long a,b;
long long Exp_Log_Mod(long long a,long long b,long long pr)
{
long long rez=1;
while(b)
{
if(b%2)
{
rez=(rez%pr)*(a%pr)%pr;
b--;
}
else
{
a=(a%pr)*(a%pr)%pr;
b/=2;
}
}
return rez;
}
int main()
{
f>>a>>b;
g<<Exp_Log_Mod(a,b,1999999973);
f.close();
g.close();
return 0;
}
