Implement Stack Using Array with Push and Pop Operations

Code

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

#define MAX 10

void process_stack(int n) {
    char str[10];
    int arr[MAX];
    int top=-1;
    for(int i=0;i<n;i++){
        scanf("%s",str);
       // printf("%d\n",i);
       getchar();
        if(strcmp(str,"push")==0)
        {
            int a;
            scanf("%d",&a);
            if(top<MAX-1){
            top++;
            arr[top]=a;
           //printf("t%d\n",top);
            }
            else printf("Stack Overflow\n");
        }
        else if(strcmp(str,"pop")==0)
        {
            if(top>-1){
            printf("%d\n",arr[top]);
            top--;
            }
            else {
                printf("Stack Underflow\n");
            }
        }
    }
}

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

    process_stack(n);
    return 0;
}

Solving Approach