#include #include #define MAX_QUEUE_SIZE 6 typedef int element; typedef struct{ element queue[MAX_QUEUE_SIZE]; int front,rear; }QueueType; // void init(QueueType *q); int is_empty(QueueType *q); int is_full(QueueType *q); void enqueue(QueueType *q,element item); element dequeue(QueueType *q); void display_queue(QueueType *q); int main(void){ QueueType q; init(&q); enqueue(&q, 1); enqueue(&q, 2);..