Impare_Bac

void Impare(int &n)
{
    int aux=0, p=1, c;
    while(n>10)
    {
        c=n%10;
        if(c%2)
            c--;
        aux=aux+p*c;
        p=p*10;
        n/=10;
    }
    if(n%2==0)
        aux=aux+p*n;
    else if(n>1)
        aux=aux+p*(n-1);
    n=aux;
}