Cod sursa(job #1164749)

Utilizator DanutsDanut Rusu Danuts Data 2 aprilie 2014 12:00:41
Problema Invers modular Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.54 kb
#include <iostream>
#include <fstream>
using namespace std;
long long int a,n,x,y,d;
ifstream f("inversmodular.in");
ofstream g("inversmodular.out");
void euclid(long long int a,long long int b,long long int d,long long int &x,long long int &y){
    if(b==0)
    {
        x=1;
        y=0;
    }
    else
    {
        long long int x0,y0;
        euclid(b,a%b,1,x0,y0);
        x=y0;
        y=x0-(a/b)*y0;
    }
}
int main()
{
    f>>a>>n;
    euclid(a,n,1,x,y);
    while(x<0)
        x+=n;
    g<<x;
    return 0;
}