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) {
    // Your logic here
    int stack[MAX];
    int index=0;

    int val=0;
    char str[8];

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


}

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

    process_stack(n);
    return 0;
}

Solving Approach