Cod sursa(job #2939541)
Utilizator | Data | 13 noiembrie 2022 21:23:14 | |
---|---|---|---|
Problema | Invers modular | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.52 kb |
#include <fstream>
#include <iostream>
using namespace std;
ifstream f ("inversmodular.in");
ofstream g ("inversmodular.out");
void modul(long long int a, long long int b, long long int &x, long long int &y){
if(b == 0){
x=1;
y=0;
return;
}
long long int x_, y_;
long long int q = a/b;
modul(b, a%b, x_, y_);
x = y_;
y = x_ - (a/b) * y_;
}
int main()
{
long long int a, b, x, y;
f>>a>>b;
modul(a, b, x, y);
if(x <= 0)
g<<x;
else g<<y;
return 0;
}