Created
June 30, 2010 16:12
-
-
Save boblmartens/458878 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include <stdio.h> | |
#include <stdlib.h> | |
struct LinkedList { | |
int number; | |
struct LinkedList *next; | |
}; | |
typedef struct LinkedList llist; | |
void PrintLinkedList( llist* ); | |
llist* ReverseLinkedList( llist* ); | |
llist* CreateLinkedList( void ); | |
int main (int argc, const char * argv[]) { | |
llist *head; | |
printf("\nLet's count down!\n-------------\n"); | |
head = CreateLinkedList(); | |
PrintLinkedList(head); | |
printf("\nNow try going up!\n-------------\n"); | |
head = ReverseLinkedList(head); | |
PrintLinkedList(head); | |
return 0; | |
} | |
void PrintLinkedList( llist *head ) { | |
llist *curPtr; | |
curPtr = head; | |
while (curPtr != NULL) { | |
printf("Number: %d\n", curPtr->number); | |
curPtr = curPtr->next; | |
} | |
} | |
llist* CreateLinkedList( void ) { | |
llist *curr, *head; | |
int num; | |
head = NULL; | |
for (num=1; num <= 12; num++) { | |
curr = (llist *)malloc( sizeof(llist) ); | |
curr->number = num; | |
curr->next = head; | |
head = curr; | |
} | |
return curr; | |
} | |
llist* ReverseLinkedList( llist *head ) { | |
llist *temp, *next_ptr, *prev_ptr; | |
next_ptr = head; | |
prev_ptr = NULL; | |
while (next_ptr != NULL) { | |
temp = next_ptr; | |
next_ptr = temp->next; | |
temp->next = prev_ptr; | |
prev_ptr = temp; | |
} | |
head = temp; | |
return head; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment