Implement Stack Using Array with Push and Pop Operations

Code

#include <stdio.h>
#include <stdint.h>
#include <string.h>

#define MAX 10

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

/* Push operation */
void push(int x)
{
    if (top == MAX - 1)
    {
        printf("Stack Overflow\n");
        return;
    }
    stack[++top] = x;
}

/* Pop operation */
void pop(void)
{
    if (top == -1)
    {
        printf("Stack Underflow\n");
        return;
    }
    printf("%d\n", stack[top--]);
}

void process_stack(int n) {
    char command[10];
    int value;

    for (int i = 0; i < n; i++)
    {
        scanf("%s", command);

        if (strcmp(command, "push") == 0)
        {
            scanf("%d", &value);
            push(value);
        }
        else if (strcmp(command, "pop") == 0)
        {
            pop();
        }
    }

}

int main() {
    int n;
    scanf("%d", &n);
    getchar(); // Consume newline after number

    process_stack(n);
    return 0;
}

Solving Approach