typedef struct 
{
   char *NAME,*RDATA;
   unsigned short int TYPE,CLASS,RDLENGTH; //16 biti
   unsigned int TTL; //32 biti
}resources;

typedef struct
{
   unsigned short int ID,OPCODE,RCODE,QDCOUNT,ANCOUNT,NSCOUNT,ARCOUNT;
   char QR,AA,TC,RD,RA,Z=0;
}header;

typedef struct
{
    char *QNAME, QTYPE, QCLASS;
}question;
int** alocMat(int n){
    int i=0;
    int **mat=(int**)malloc(n * sizeof(int*));
    for (i=0;i<n;i++)  
        (mat)[i] = (int*)malloc(n*sizeof(int));
    return mat;
}

int min3(int x1, int x2, int x3){
    if (x1<=x2 && x1<=x3)
        return x1;
    if (x2<=x3)
        return x2;
    return x3;
}