int ggt (int a, int b)
{
if (b==0)
return a;
else
return ggt(b, a%b);
}
unsigned long ggt(unsigned long a, unsigned long b){
if(b>0){
ggt(b, a%b);
}
if(b<=0){
return a;
}
}
int main(void) {
unsigned long a, b;
printf("ggt = größter gemeinsamer Teiler(mit 0 beenden)\n");
printf("Zahl> ");
scanf("%lu", &a);
printf("Zahl> ");
scanf("%lu", &b);
a=ggt(a, b);
while(1) {
printf("Zahl> ");
scanf("%lu", &b);
if(b==0)
break;
a=ggt(a, b);
}
printf("-------->ggt = %lu\n", a);
return EXIT_SUCCESS;
}
/* kuerzen()
*/
void KBruch::kuerzen ()
{
// falls kürzbar, Zähler und Nenner durch GGT teilen
if (kuerzbar) {
int teiler = ggt();
zaehler /= teiler;
nenner /= teiler;
kuerzbar = false; // damit nicht mehr kürzbar
}
}
/* Operator *=
* - zum Überschreiben mit Typen der Basisklasse neu implementiert
*/
const KBruch& KBruch::operator*= (const Bruch& b)
{
/* Implementierung der Basisklasse aufrufen
* - auf nichtöffentliche Komponenten von b besteht kein Zugriff
*/
Bruch::operator*= (b);
// weiterhin gekürzt ?
if (!kuerzbar) {
kuerzbar = (ggt() > 1);
}
return *this;
}
int main(int argc, char *argv[])
{
int sockfd;
int serverPort;
int new_fd;
struct sockaddr_in serv_addr, cli_addr;
int clilen;
printf("TCP server example\n\n");
if (argc != 2) {
fprintf(stderr,"Usage: tcpServe serverPort \n");
exit(1);
}
serverPort = atoi(argv[1]);
printf("port = %i\n", serverPort);
memset(&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(serverPort);
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if(bind(sockfd, (struct sockaddr*) &serv_addr, sizeof(serv_addr)) < 0)
{
printf("could not bind\n");
}
listen(sockfd, 10);
clilen = sizeof cli_addr;
while(1) {
new_fd = accept(sockfd, (struct sockaddr *)&cli_addr, &clilen);
unsigned char buffer[4];
int size = read(new_fd, buffer, 4);
if(size > 0) {
unsigned int a,b;
printf("received: %x %x %x %x\n", buffer[0],buffer[1],buffer[2],buffer[3]);
unpackData(buffer, &a, &b);
printf("ggt of %i %i is %i\n", a ,b, ggt(a,b));
}
}
close(sockfd);
return 0;
}
int main(int argc, char *argv[]) {
long int n, m;
if (argc == 3) {
if (sscanf(argv[1], "%ld", &n)) {
if (sscanf(argv[2], "%ld", &m)) {
fprintf(stdout, "ggt von %ld and %ld ist %ld \n", n, m, ggt(n, m));
return EXIT_SUCCESS;
}
}
}
fprintf(stderr, "Geben sie bitte zwei Zahlen ein...\n");
return EXIT_FAILURE;
}
int main(int argc, char *argv[]) {
struct sockaddr_storage their_addr;
socklen_t addr_size;
int sockfd;
struct addrinfo hints, *res;
unsigned char buffer[4];
unsigned int a=0;
unsigned int b=0;
int ergebnis;
printf("TCP/UDP server for TechGI 4\n\n");
if (argc != 2) {
fprintf(stderr,"Usage: server udport \n");
exit(1);
}
// get serverport
const char* udpPort =argv[1];
//load address
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_PASSIVE;
getaddrinfo(NULL, udpPort, &hints, &res);
printf("udpPort: %s\n",udpPort);
//create socket
sockfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
//bind socket
bind(sockfd, res->ai_addr, res->ai_addrlen);
addr_size = sizeof their_addr;
//recieve packet and test
int recieve = recvfrom(sockfd, &buffer, 20, 0, (struct sockaddr *)&their_addr, &addr_size);
printf("Recieved %d Byte\n", recieve);
//unpack buffer
unpackData(buffer, &a, &b);
//calculate result and return
ergebnis = ggt(a, b);
printf("Zahl 1: %d Zahl 2: %d GGT: %d \n", a, b, ergebnis);
}
unsigned long ggt(unsigned long a, unsigned long b) {
if(b == 0)
return a;
return ggt(b, a % b);
}
int ggt (int i){
if (i <= 0) return 0;
if (g[i])return g[i];
return g[i] =
ggt(i - 1) * 2 + i + i - 2;
}
int get (int n){
if (n == 1) return 0;
int i = log(n+.0)/log(2.),
k = n - (1 << i);
return i - 1 + ggt(i - 1) + ( k ? get(k) + i - 1 : 0);
}
/* scanFrom()
*/
void KBruch::scanFrom (std::istream& strm)
{
Bruch::scanFrom (strm); // scanFrom() der Basisklasse aufrufen
kuerzbar = (ggt() > 1); // Kürzbarkeit testen
}
int main(void){
printf("%lu", ggt(12, 14));
return 0;
}
