Cod sursa(job #3209157)
Utilizator | Radu Pelea radu._.21 | Data | 2 martie 2024 08:34:03 |
---|---|---|---|
Problema | Invers modular | Scor | 60 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.46 kb |
#include <fstream>
using namespace std;
#define int unsigned long long
int n,mod;
ifstream fin("inversmodular.in");
ofstream fout("inversmodular.out");
int ridicare(int x,int put){
if(put==0)
return 1;
if(put%2==0){
return ridicare(x,put/2)*ridicare(x,put/2)%mod;
}
else{
return ridicare(x,put/2)*ridicare(x,put/2)%mod*x%mod;
}
}
int32_t main()
{
fin>>n>>mod;
fout<<ridicare(n,mod-2);
return 0;
}