than mine time's ocean as real white shakedown marine is mistake , C (gcc)

than mine time's ocean as real white shakedown marine is mistake

//gcc 5.4.0

#include  <stdio.h>

int main(void)
{
    printf("Hello, world!\n");
    return 0;
}https://play.google.com/store/apps/details?id=vrpatel0018.cprograms

// Circular Queue Data Structure

#include<stdio.h>

#define SIZE 5

int items[SIZE];
int front = -1, rear =-1;

int isFull()
{
    if( (front == rear + 1) || (front == 0 && rear == SIZE-1)) return 1;
    return 0;
}

int isEmpty()
{
    if(front == -1) return 1;
    return 0;
}

void enQueue(int element)
{
    if(isFull()) printf("\n Queue is full!! \n");
    else
    {
        if(front == -1) front = 0;
        rear = (rear + 1) % SIZE;
        items[rear] = element;
        printf("\n Inserted -> %d", element);
    }
}

int deQueue()
{
    int element;
    if(isEmpty()) {
        printf("\n Queue is empty !! \n");
        return(-1);
    } else {
        element = items[front];
        if (front == rear){
            front = -1;
            rear = -1;
        } /* Q has only one element, so we reset the queue after dequeing it. ? */
        else {
            front = (front + 1) % SIZE;
            
        }
        printf("\n Deleted element -> %d \n", element);
        return(element);
    }
}

void display()
{
    int i;
    if(isEmpty()) printf(" \n Empty Queue\n");
    else
    {
        printf("\n Front -> %d ",front);
        printf("\n Items -> ");
        for( i = front; i!=rear; i=(i+1)%SIZE) {
            printf("%d ",items[i]);
        }
        printf("%d ",items[i]);
        printf("\n Rear -> %d \n",rear);
    }
}

int main()
{
    // Fails because front = -1
    deQueue();
    
    enQueue(1);
    enQueue(2);
    enQueue(3);
    enQueue(4);
    enQueue(5);
    
    // Fails to enqueue because front == 0 && rear == SIZE - 1
    enQueue(6);
    
    display();
    deQueue();
    
    display();
    
    enQueue(7);
    display();
    
    // Fails to enqueue because front == rear + 1
    enQueue(8);
    
    return 0;
}


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