88. Implement Stack Using Array with Push and Pop Operations

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

#define MAX 10


typedef struct {
    int buffer[MAX];
    int top;
} stack_t;

stack_t myStack = {. top = 0}; 
char command[10];
int value; 

void process_stack(int n) {
    // Your logic here
    for (int i = 0; i < n; ++i) {
        scanf("%s", command);
        if (strcmp(command, "push") == 0) {
            scanf("%d", &value);
            getchar(); 
            if (myStack.top < MAX) myStack.buffer[myStack.top++] = value;
            else printf("Stack Overflow\n");
        }  
        else if (strcmp(command, "pop") == 0) {
            
            if (myStack.top > 0) printf("%d\n", myStack.buffer[--myStack.top]);
            else printf("Stack Underflow\n");
        } 
    }
}   

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

    process_stack(n);
    return 0;
}