88. Implement Stack Using Array with Push and Pop Operations

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

#define MAX 10

void process_stack(int n) {
    int stack[MAX];
    int top = -1;

    while (n--) {
        char operation[10];
        scanf("%s", operation);
        if (strcmp(operation, "push") == 0) {
            int value;
            scanf("%d", &value);
            if (top == MAX-1) {
                printf("Stack Overflow\n");
                continue;
            }
            top += 1;
            stack[top] = value;
            continue;
        }

        if (top < 0) {
            printf("Stack Underflow\n");
            continue;
        }

        printf("%d\n", stack[top]);
        top = top - 1;
    }
}

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

    process_stack(n);
    return 0;
}