HEAP

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

#define MAX_SIZE 500

int array_size = 0;

typedef struct
{
    int priority,value;
}Node;

void initialize(Node heap[])
{
    array_size = 0;
    return;
}

void heapify(Node heap[], int i /*index*/)
{
    int j;
    Node temp;
    j = i/2;
    while (i > 0 && heap[j].priority < heap[i].priority)
    {
        temp = heap[j];
        heap[j] = heap[i];
        heap[i] = temp;
        i=j;
        j/=2;
    }
    return;
}

void enqueue(Node heap[],int priority,int value)
{
    if(array_size == MAX_SIZE)
    {
        printf("you reached max size");
        return;
    }
    heap[array_size].priority = priority;
    heap[array_size].value = value;
    array_size++;
    heapify(heap,array_size);
    return;
}

int main()
{
    Node heap[MAX_SIZE];
    initialize(heap);
    return 0;
}