int deleteMiddle(List* l, int position)
{
// position invalid
if(l->nElements <= position || position < 0){
printf("it is not possible to delete in position %d \n",position);
return FALSE;
}
else{ // posisiton valid
if(position == 0){ //delete in the first element
deleteFront(l);
return TRUE;
}
int i = 0;
Node* ant;
Node* aux;
aux = l->head;
do{
ant = aux;
aux = aux->next;
i++;
}while(i < position);
ant->next = aux->next;
free(aux);
l->nElements--;
return TRUE;
}
}
int main(int argc, const char * argv[]) {
FILE *file = fopen(argv[1], "r");
char line[1024];
while(fgets(line, 1024, file)) {
//printf("%s", line);
}
struct node *aList;
initializeLinkedList(&aList);
insertBack(9, &aList);
insertBack(61, &aList);
insertFront(0, &aList);
deleteFront(&aList);
insertFront(109, &aList);
insertFront(81, &aList);
insertBack(1890, &aList);
printf("%s\n", "printing list:");
printLinkedList(&aList);
destroyLinkedList(&aList);
printf("got %d\n", ant);
fclose(file);
#ifndef _MY_MYTEST_H_
printf("defining");
#endif
return 0;
}
bool ServerClientList::removeClient( PlayerID client_id )
{
ServerClientListData *client_data_ptr;
if ( front == 0 )
return( false );
client_data_ptr = front;
if ( client_data_ptr->client_id == client_id )
{
deleteFront();
return( true );
}
while( client_data_ptr->next != 0 )
{
if ( client_data_ptr->next->client_id == client_id )
{
deleteAfter( client_data_ptr );
return( true );
}
client_data_ptr = client_data_ptr->next;
}
return( false );
}
void llist::deleteIth(int I, el_t& Old)
{
// case(exception)
// ---------------
if(I < 1 || I > Count)
throw OutOfRange();
// case(I is the front)
// --------------------
else if(I == 1)
deleteFront(Old);
// case(I is the rear)
// -------------------
else if(I == Count)
deleteRear(Old);
// case(I is any node between front and rear)
// ------------------------------------------
else
{
Node *temp = Front;
Node *del;
for(int j = 1; j < I - 1; j++)
temp = temp->Next;
del = temp->Next;
Old = del->Elem;
temp->Next = del->Next;
delete del;
Count--;
}
}
//runs the DFS algorithm on the Graph G, using the List S to order the vertices
//and store the stack of finished vertices.
//Pre: Length of S = order of G, S has all the correct numbers in it(does not check this)
void DFS(Graph G, List S){
if( G == NULL ) {
printf("Graph Error: calling DFS() on NULL Graph reference\n");
exit(1);
}
if( S == NULL ) {
printf("Graph Error: calling DFS() on NULL List reference\n");
exit(1);
}
if( length(S) != getOrder(G) ) {
printf("Graph Error: calling DFS() on wrong length list\n");
exit(1);
}
for(int i = 1; i <= getOrder(G); i++) {
G->vcolor[i]='w';
G->vparent[i]=NIL;
}
int time;
time =0;
int k;
k=0;
moveTo(S, getOrder(G)-1);
for(int i = 1; i <= getOrder(G); i++) {
int u;
u = front(S);
deleteFront(S);
if (G->vcolor[u] == 'w'){
k=k+1;
time = visit(G, S, u, &time, k);
G->numcc=k;
}
}
}
void BFS(GraphRef G, int s){
int i, u, tmp;
G->source = s;
for ( i = 1;i <= getOrder(G); i++){
G->color[i] = 'w';
G->discover[i] = INF;
G->parent[i] = NIL;
}
G->color[s] = 'g';
G->discover[s] = 0;
G->parent[s] = NIL;
ListRef Q = newList();
insertFront( Q, s );
while( !isEmpty(Q) ){
u = getFront(Q);
deleteFront(Q);
moveTo(G->adjacency[u], 0);
while ( !offEnd(G->adjacency[u]) ){
tmp = getCurrent(G->adjacency[u]);
if ( G->color[tmp] == 'w'){
G->color[tmp] = 'g';
G->discover[tmp] = G->discover[u] + 1;
G->parent[tmp] = u;
insertBack( Q, tmp );
}
moveNext(G->adjacency[u]);
}
G->color[u] = 'b';
}
freeList(&Q);
}
/* DFS()
* Pre: List S length == Number of vetices in G
* Pos: finds the strongly connected components
*/
void DFS(GraphRef G, ListRef S){
if(G == NULL){
fprintf(stderr,"Graph Error: calling DFS on NULL Graph");
exit(1);
}
if(getLength(S) != getOrder(G)){
fprintf(stderr,"DFS Error: ListRef size != Graph size");
exit(1);
}
int i;
int u;
int j;
for(i=1; i<=getOrder(G);i++){
G->color[i] = WHITE;
G->parent[i] = NIL;
}
j =1;
moveTo(S,getLength(S)-1);
while(!offEnd(S) && j<=getOrder(G)){
u = getFront(S);
if(G->color[u] == WHITE){
Visit(G,S,u);
}
deleteFront(S);
j++;
}
}
// clear()
// Removes every entry in the List
void clear(List L) {
if (L == NULL) {
printf("List Error: clear() called on NULL List reference\n");
exit (1);
} else {
while (length(L)!=0) {deleteFront(L);}
}
}
// freeList()
// Frees all heap memory associated with List *pL, and sets *pL to NULL.S
void freeList(List* pL)
{
if( pL != NULL && *pL != NULL ){
while( !isEmpty(*pL) ){ deleteFront(*pL); }
myFree(*pL);
*pL = NULL;
}
}
void freeList(ListRef* pL){
if(pL!=NULL && *pL==NULL) {return;}
while( !isEmpty(*pL)) {
deleteFront(*pL);
}
free(*pL);
*pL = NULL;
}
// freeList()
// Frees all heap memory associated with List *pL, and sets *pL to NULL.
void freeList(List* pL){
if(pL!=NULL && *pL!=NULL) {
while (length(*pL) > 0) {
deleteFront(*pL);
}
free(*pL);
*pL = NULL;
}
}
void revList(List L){
if(length(L) == 0){
return;
}
int tmp = front(L);
deleteFront(L);
revList(L);
append(L,tmp);
}
// clear()
// resets list back to empty state.
void clear(List L)
{
while(L->length >= 1)
{
deleteFront(L);
}
L->cursor = NULL;
L->index = -1;
}
void deleteItem()
{
struct node *before;
struct node *search;
struct node *current;
int countbefore=1;
int countafter=0;
int countlist=0;
int countitem=0;
int item=10;
while(item<0||item>9)
{
printf("Enter number to be deleted: ");
scanf("%d",&item);
}
current=head;
while(current->next!=NULL)
{
current=current->next;
countlist++;
}
//printf("%d\n",countlist);
search=head;
while(item!=search->data) //search for the node to be deleted
{
search=search->next;
countitem++;
}
if(countitem==0) //if ang e delete kay naa sa pinaka una
{
deleteFront();
}
else if(countitem==countlist) // if ang e delete kay naa sa pinaka tomoy
{
deleteRear();
}
else
{
before=head;
while(countbefore<countitem) //point the before pointer to the node before the node to be deleted
{
before=before->next;
countbefore++;
}
current=before->next->next;
before->next=current; //delete the node to be deleted from the list
}
}
/*
* makeEmpty()
* Sets L to the empty state.
* Post: isEmpty(L).
*/
void makeEmpty(ListRef L) {
if ( L == NULL ) {
printf("List Error: calling makeEmpty() on NULL ListRef\n");
exit(1);
}
if ( L->front == NULL) {
return;
}
while( !isEmpty(L) ) {
deleteFront(L);
}
}
// clears the list
void clear(List L) {
if ( L == NULL ) {
printf("List Error: clear() called on NULL list\n");
exit(1);
}
if ( L->front == NULL) {
return;
}
while( !isEmpty(L) ) {
deleteFront(L);
}
}
// Re-sets List L to the empty state.
void clear(List L)
{
if(L==NULL)
{
printf("List Error: calling clear() on NULL List reference\n");
exit(1);
}
if(!isEmpty(L)){
int k = length(L);
for(int i = 0; i < k; i++){
deleteFront(L);
}
}
}
// Resets this List to its original empty state.
// Pre: none
void clear(List L){
if( L==NULL ){
printf("List Error: calling clear() on NULL List reference");
exit(1);
}
while( L->front!=NULL ){
deleteFront(L);
}
//Function clear() should have a loop that calls deleteFront() or
// deleteBack() while the list is not empty.
L->front = NULL;
L->back = NULL;
L->cursor = NULL;
L->length = 0;
L->index = -1;
}
//runs the BFS algorithm on the Graph G with source s, setting the color, distance,
//parent, and source fields of G accordingly.
void BFS(Graph G, int s) {
if( G == NULL ) {
printf("Graph Error: calling BFS() on NULL Graph reference\n");
exit(1);
}
if((1>s) || (s > getOrder(G))) {
printf("Graph Error: calling BFS() on invalid vertex value\n");
exit(1);
}
//start actual BFS algorithm
for (int i = 1; i <= getOrder(G); i++) {
G->vcolor[i] = 'w';
G->vdistance[i] = INF;
G->vparent[i] = NIL;
}
G->source = s;
G->vcolor[s]= 'g';
G->vdistance[s] = 0;
List Q;
Q = newList();
append(Q,s);
while (length(Q) != 0) {
moveTo(Q,0);
int u;
u = getElement(Q);
deleteFront(Q);
moveTo(G->vneighbor[u],0);
while (getIndex(G->vneighbor[u]) != -1) {
int v = getElement(G->vneighbor[u]);
if(G->vcolor[v] == 'w') {
G->vcolor[v] = 'g';
G->vdistance[v] = G->vdistance[u] + 1;
G->vparent[v] = u;
append(Q, v);
}
moveNext(G->vneighbor[u]);
}
G->vcolor[u] = 'b';
}
freeList(&Q);
}
int main(int argc, char* argv[]){
FILE *out;
out = fopen(argv[2], "w");
List A = newList();
List B = newList();
List C = NULL;
int i;
for(i=1; i<=5; i++){
append(A,i);
prepend(B,i);
}
printList(out,A);
printf("\n");
printList(stdout,B);
printf("\n");
for(moveTo(A,0); getIndex(A)>=0; moveNext(A)){
printf("%d ", getElement(A));
}
printf("\n");
for(moveTo(B,length(B)-1); getIndex(B)>=0; movePrev(B)){
printf("%d ", getElement(B));
}
printf("\n");
C = copyList(A);
printf("%s\n", equals(A,B)?"true":"false");
printf("%s\n", equals(B,C)?"true":"false");
printf("%s\n", equals(C,A)?"true":"false");
printf("A's front = %d\n", front(A));
printf("A's back = %d\n", back(A));
deleteFront(A);
deleteBack(A);
printf("A's front = %d\n", front(A));
printf("A's back = %d\n", back(A));
moveTo(A,4);
insertBefore(A,-1);
moveTo(A,3);
insertAfter(A,-2);
moveTo(A,2);
delete(A);
printList(stdout,A);
printf("\n");
// printf("%d\n", length(A));
clear(A);
printf("%d\n", length(A));
printf("entering A \n");
freeList(&A);
//clear(B);
printf("A free, entering B \n");
freeList(&B);
//clear(C);
printf("A/B free, entering C \n");
freeList(&C);
fclose(out);
return(0);
}
llist::~llist()
{
char placeholder;
while(!isEmpty())
deleteFront(placeholder);
}
int main(int argc, char* argv[])
{
int i;
ListRef A = newList();
ListRef B = newList();
ListRef ACopy = NULL;
ListRef AB_Cat = NULL;
insertBack(A, 10);
insertBack(A, 20);
insertBack(A, 30);
insertBack(A, 40);
insertBack(A, 50);
insertBack(A, 60);
printf("equals(A,B) : %d\n", equals(A, B));
insertBack(B, 10);
insertBack(B, 20);
insertBack(B, 30);
insertBack(B, 40);
insertBack(B, 50);
insertBack(B, 60);
AB_Cat = catList(A, B);
printf("printLIST(AB_Cat) : ");
printLIST(AB_Cat);
ACopy = copyList(A);
printf("printLIST(A) : ");
printLIST(A);
printf("printLIST(ACopy) : ");
printLIST(ACopy);
printf("equals(A,ACopy) : %d\n", equals(A, ACopy));
printf("equals(A,B) : %d\n", equals(A, B));
printf("printLIST(A) : ");
printLIST(A);
moveTo(A, getLength(A));
printf("offEnd(A) : %d\n", offEnd(A));
moveTo(A, 3);
insertBeforeCurrent(A, 35);
insertAfterCurrent(A, 45);
printf("printLIST(A) : ");
printLIST(A);
printf("getCurrent(A) : %d\n", getCurrent(A));
movePrev(A);
printf("getCurrent(A) : %d\n", getCurrent(A));
deleteCurrent(A);
printf("printLIST(A) : ");
printLIST(A);
makeEmpty(B);
deleteFront(A);
printf("printLIST(A) : ");
printLIST(A);
printf("getLength(A) : %d\n", getLength(A));
printf("isEmpty(A) : %d\n", isEmpty(A));
makeEmpty(A);
printf("isEmpty(A) : %d\n", isEmpty(A));
printf("getLength(A) : %d\n", getLength(A));
/* printf("printLIST(A) : ");
printLIST(A); */
insertFront(B, 50);
insertBack(B, 60);
insertFront(B, 40);
insertBack(B, 70);
insertFront(B, 30);
insertBack(B, 80);
insertFront(B, 20);
insertBack(B, 90);
insertFront(B, 10);
printf("printLIST(B) : ");
printLIST(B);
printf("offEnd(B) : %d\n", offEnd(B));
moveTo(B, 5);
printf("offEnd(B) : %d\n", offEnd(B));
printf("getCurrent(B) : %d\n", getCurrent(B));
deleteCurrent(B);
printf("printLIST(B) : ");
printLIST(B);
/* printf("getCurrent(B) : %d\n", getCurrent(B));*/
moveTo(B, 0);
printf("getFront(B) : %d\n", getFront(B));
printf("getCurrent(B) : %d\n", getCurrent(B));
deleteFront(B);
printf("printLIST(B) : ");
printLIST(B);
printf("getFront(B) : %d\n", getFront(B));
/* printf("getCurrent(B) : %d\n", getCurrent(B)); */
moveTo(B, (getLength(B)-1));
printf("getCurrent(B) : %d\n", getCurrent(B));
printf("getBack(B) : %d\n", getBack(B));
deleteBack(B);
printf("getBack(B) : %d\n", getBack(B));
/* printf("getCurrent(B) : %d\n", getCurrent(B)); */
moveTo(B, (getLength(B)-1));
printf("getCurrent(B) : %d\n", getCurrent(B));
printf("getBack(B) : %d\n", getBack(B));
deleteBack(B);
printf("getBack(B) : %d\n", getBack(B));
printf("getCurrent(B) : %d\n", getCurrent(B));
return(0);
}
void BFS ( Graph G, int s )
{
// pre-condition
if ( G == NULL )
{
printf ( "Graph Error: BFS() on NULL graph" );
exit(1);
}
// pre-condition
if ( s < 1 || s > getOrder(G) )
{
printf ( "Graph Error: s undefined" );
exit(1);
}
// this part of the code was strictly from the textbook
// on page 595 from section 22.2. Also mentioned in pa4 pdf
// received help from a cs student
G->source = s;
int i, j, k;
for ( i = 1; i <= getOrder(G); i++ )
{
G->color[i] = WHITE;
G->d[i] = INF;
G->p[i] = NIL;
}
G->color[s] = GRAY;
G->d[s] = 0;
G->p[s] = NIL;
List L = newList(); // Q != /0
append(L, s);
// received help on this while loop from a student
while( length(L) != 0)
{
j = front(L);
deleteFront(L);
moveTo(G->adjacency[j], 0);
while(getIndex(G->adjacency[j]) != -1)
{
k = getElement(G->adjacency[j]);
// need help with the for loop
// ask professor
if(G->color[k] == WHITE)
{
G->color[k] = GRAY;
G->d[k] = (getDist(G, j) +1);
G->p[k] = j;
append(L, k);
}
moveNext(G->adjacency[j]);
}
G->color[j] = BLACK;
}
// free the list after use
freeList(&L);
}
// freeList()
// Frees all heap memory associated with List *pL, and sets *ppL to NULL
void freeList(List* pL) {
if (pL == NULL || *pL == NULL) {return;}
while (length(*pL) != 0) {deleteFront(*pL);}
free(*pL);
*pL = NULL;
}
void askUser()
{
int num;
int x=10;
int i;
char choices;
system("cls");
printf("\n[1]-DISPLAY ARRAY\n[2]-INSERT REAR\n[3]-INSERT FRONT\n[4]-INSERT INTO\n[5]-DELETE FRONT\n[6]-DELETE REAR\n[7]-DELETE ITEM\n[8]-DELETE ALL ITEM\n[9]-MAKE UNIQUE\n");
choices=getch();
switch(choices)
{
case '1':
displayArray();
getch();
askUser();
break;
case '2':
num=askNum();
for(i=0;i<num;i++)
{
while(x<0||x>9)
{
printf("Enter number: ");
scanf("%d",&x);
}
insertRear(x);
x=10;
displayArray();
}
getch();
askUser();
break;
case '3':
num=askNum();
for(i=0;i<num;i++)
{
while(x<0||x>9)
{
printf("Enter number: ");
scanf("%d",&x);
}
insertFront(x);
x=10;
displayArray();
}
getch();
askUser();
break;
case '4':
displayArray();
insertInto();
displayArray();
getch();
askUser();
break;
case '5':
deleteFront();
displayArray();
getch();
askUser();
break;
case '6':
deleteRear();
displayArray();
getch();
askUser();
break;
case '7':
displayArray();
deleteItem();
displayArray();
getch();
askUser();
break;
case '8':
displayArray();
deleteAllItem();
displayArray();
getch();
askUser();
break;
case '9':
displayArray();
makeUnique();
displayArray();
getch();
askUser();
break;
default:
getch();
break;
}
}
void askUser()
{
int num;
int x=10;
int i;
char choices;
struct node *current;
current=head;
system("cls");
printf("\n[1]-ENQUEUE\n[2]-DEQUEUE\n[3]-FRONT\n[4]-REAR\n");
choices=getch();
switch(choices)
{
case '1':
num=askNum();
for(i=0;i<num;i++)
{
while(x<0||x>9)
{
printf("Enter number: ");
scanf("%d",&x);
}
insertRear(x);
x=10;
displayArray();
}
getch();
askUser();
break;
case '2':
deleteFront();
displayArray();
getch();
askUser();
break;
case '3':
if(head!=NULL)
{
printf("%d",head->data);
}
else
{
printf("List is empty");
}
getch();
askUser();
break;
case '4':
while(current->next!=NULL)
{
current=current->next;
}
printf("%d",current->data);
getch();
askUser();
break;
default:
getch();
break;
}
}