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 stack_top = -1;
    char operation[10];
    int value;

    while (n--) {

        scanf("%s", operation);
        scanf("%d", &value);

        if (!strcmp(operation, "push")) {
            if (stack_top < MAX-1) {
                stack[++stack_top] = value;
            } else {
                printf("Stack Overflow\n");
            }
        } else if (!(strcmp(operation, "pop"))) {
            if (stack_top > -1) {
                printf("%d\n", stack[stack_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