Cod sursa(job #3038877)
Utilizator | Data | 27 martie 2023 21:18:46 | |
---|---|---|---|
Problema | Invers modular | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.43 kb |
#include <fstream>
using namespace std;
ifstream fin("invermodular.in");
ofstream fout("inversmodular.out");
int a,n;
void euclid(int a,int n,int &x, int &y){
if(n==0){
x=1; y=0;
}
else{
int x0,y0;
euclid(n,a%n,x0,y0);
x=y0;
y=x0-a/n*y0;
}
}
int main(){
fin>>a>>n; int x,y;
euclid(a,n,x,y);
while(x<0)
x+=n;
fout<<x;
return 0;
}