Cod sursa(job #2399384)
Utilizator | Data | 7 aprilie 2019 14:16:35 | |
---|---|---|---|
Problema | Invers modular | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("inversmodular.in");
ofstream fout("inversmodular.out");
void euclid(int a,int b,int &x,int &y)
{
if (b == 0) {
x = 1;
y = 0;
return;
}
int x0, y0;
euclid(b, a%b, x0, y0);
x = y0;
y = x0 - (a / b) * y0;
}
int main()
{
int n;
int a, b;
fin >> a >> b;
int x, y;
euclid(a, b, x, y);
if (x < 0)
x += b;
fout << x << "\n";
}