Cod sursa(job #2863499)
Utilizator | Ioan Mihai IoanMihai | Data | 6 martie 2022 20:05:01 |
---|---|---|---|
Problema | Invers modular | Scor | 50 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.45 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("inversmodular.in");
ofstream fout("inversmodular.out");
int A, N, xx, yy;
void invers_modular(int a, int b, int &x, int &y)
{
if (b == 0){
x = 1;
y = 0;
}else{
int x0, y0;
invers_modular(b, a%b, x0, y0);
x = y0;
y = x0 - (a/b) * y0;
}
}
int main() {
fin >> A >> N;
invers_modular(A, N, xx, yy);
fout << xx << '\n';
return 0;
}