kriss-u

#include <stdio.h>
#include <stdlib.h>

// Self-referential Structure
struct queueNode {
    char data;  // A character data in the queue
    struct queueNode *nextPtr;   // Pointer to next node
}; // end struct queuNode

typedef struct queueNode QueueNode; // alias for the struct

kriss-u

#include <stdio.h>
#include <stdlib.h>

// Self-referential structure
struct stackNode {
    int data;  // A integer data in the stack
    struct stackNode *nextPtr;   // Pointer to next element of stack
}; // end struct stackNode

typedef struct stackNode StackNode; // alias for the struct

kriss-u

#include <stdio.h>
#include <stdlib.h>

// Self-referential Structure
struct listNode {
    char data;  // A character data in the list
    struct listNode *nextPtr;   // Pointer to next node
}; // end struct listNode

typedef struct listNode ListNode; // alias for the struct