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) {
    // Your logic here
    int STACK[MAX];
    int head = -1;

    char cmd[10];
    int val;

    for (int i; i < n; i++){
       scanf("%s", cmd);
        if(strcmp(cmd, "push") == 0){
            scanf("%d", &val);
            if(head >= MAX - 1){
                printf("Stack Overflow\n");
            } else{
                head++;
                STACK[head] = val;
            }
        }
        else if(strcmp(cmd, "pop") == 0){
            scanf("%d", &val);
            if(head == -1){
                printf("Stack Underflow\n");
            }
            else{
                printf("%d\n", STACK[head--]);
            }
        }
    }

}

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

    process_stack(n);
    return 0;
}