Cod sursa(job #595851)
Utilizator | Data | 14 iunie 2011 17:22:27 | |
---|---|---|---|
Problema | Invers modular | Scor | 50 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.37 kb |
#include<stdio.h>
int n,a;
void euclid(int a, int b, int &x, int &y) {
if(b==0) {
x=1;
y=0;
return;
}
int q=a/b,xx,yy;
euclid(b,a%b,xx,yy);
x=yy;
y=xx-q*yy;
}
int main() {
int x,y;
freopen("inversmodular.in","r",stdin);
freopen("inversmodular.out","w",stdout);
scanf("%d%d",&a,&n);
euclid(a,n,x,y);
printf("%d\n",x);
return 0;
}