Simplest Program to implement Stack using Array

#include<stdio.h>
#define MAX 10
int top=-1;
void push(int arr[],int element);
int pop(int arr[]);
int peek(int arr[]);
int isFull();
int isEmpty();
int main()
{
//implement main function in your way. main function is written only for testing purpose
//let me know about any discrepency

    int arr[MAX];
    int data=0;
    int i=0;
    for(i=0;i<10;i++){
        scanf("%d",&data);
        push(arr,data);
    }
    push(arr,data);
    data=pop(arr);
    printf("%d",data);
    return 0;
}

void push(int arr[],int element)
{
    if(isFull()){
        printf("Array Full\n");
        return;
    }   
    arr[++top]=element;
}

int pop(int arr[]){
    if(!isEmpty){
        printf("Array Empty\n");
        return;
    }
    return arr[top--];
}

int peek(int arr[]){
    if(isEmpty){
        printf("Array Empty\n");
        return;
    }
    return arr[top];
}

int isFull()
{
    if(top==MAX-1)
        return 1;
    return 0;
}

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