Cod sursa(job #2457700)
Utilizator | Data | 18 septembrie 2019 15:27:35 | |
---|---|---|---|
Problema | Invers modular | Scor | 50 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.38 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("inversmodular.in");
ofstream fout("inversmodular.out");
int main()
{
long long int a, n, aux, r, c, y, y0, y1;
y0 = 0;
y1 = 1;
fin >> a >> n;
aux = n;
while(a!=0)
{
r = n%a;
c = n/a;
n = a;
a = r;
y = y0 - c * y1;
y0 = y1;
y1 = y;
}
if(y0 < 0)
y0 = n + y0%n;
fout << y0;
return 0;
}