SYBCom(CA) DS Practical Slip 16 Q.B

Write a C program to implement Static implementation of stack of integers with following operation: -Initialize (), push(), pop(), isempty(), isfull(), display()

#include <stdio.h>
#define MAX 100

int stack[MAX];
int top = -1;

// Function to initialize stack
void initialize() {
    top = -1;
    printf("Stack initialized.\n");
}

// Function to check if stack is empty
int isempty() {
    return (top == -1);
}

// Function to check if stack is full
int isfull() {
    return (top == MAX - 1);
}

// Function to push an element into stack
void push(int value) {
    if(isfull()) {
        printf("Stack Overflow! Cannot push %d\n", value);
        return;
    }
    stack[++top] = value;
    printf("%d pushed into stack.\n", value);
}

// Function to pop an element from stack
int pop() {
    if(isempty()) {
        printf("Stack Underflow! Cannot pop.\n");
        return -1;
    }
    return stack[top--];
}

// Function to display stack elements
void display() {
    if(isempty()) {
        printf("Stack is empty.\n");
        return;
    }

    printf("Stack elements (top to bottom): ");
    for(int i = top; i >= 0; i--)
        printf("%d ", stack[i]);
    printf("\n");
}

// Main function to demonstrate stack operations
int main() {
    int choice, value;

    initialize();

    do {
        printf("\nStack Operations Menu:\n");
        printf("1. Push\n2. Pop\n3. Display\n4. IsEmpty\n5. IsFull\n6. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch(choice) {
            case 1:
                printf("Enter value to push: ");
                scanf("%d", &value);
                push(value);
                break;
            case 2:
                value = pop();
                if(value != -1)
                    printf("Popped element: %d\n", value);
                break;
            case 3:
                display();
                break;
            case 4:
                if(isempty())
                    printf("Stack is empty.\n");
                else
                    printf("Stack is not empty.\n");
                break;
            case 5:
                if(isfull())
                    printf("Stack is full.\n");
                else
                    printf("Stack is not full.\n");
                break;
            case 6:
                printf("Exiting program.\n");
                break;
            default:
                printf("Invalid choice! Try again.\n");
        }
    } while(choice != 6);

    return 0;
}