Cod sursa(job #229058)
Utilizator | Data | 9 decembrie 2008 06:46:30 | |
---|---|---|---|
Problema | Invers modular | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.44 kb |
#include<fstream>
using namespace std;
int main()
{
long long i, n, a,p;
ifstream f("inversmodular.in");
f>>a>>n;
f.close();
p=n-2;
i=1;
while(p)
{
if( (p&1) )
i*=a;
a*=a;
p>>=1;
}
ofstream g("inversmodular.out");
g<<i<<'\n';
g.close();
return 0;
}