how can I implement the pop function for a stack in C, that takes as a parameter the address of the variable that is on top of the stack. I am new to c and have no experience as to how pointers work.

int main(){

char c; int value;

printf("Add value to stack "); scanf("%d", &value); push(value);

pop(&value);

}

push and pop function written in a different class called stack

#define MAX 10

int top = -1;

int arr[MAX];

int push(int value){

if(top == MAX-1){ printf("Overflow!!!"); //stack is full

}

top++; //increment top

arr[top] = value; // assign value to array

}

int pop(int *value){ //function to work with

}