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 top = 0;
    char cmd[10];
    int val;
    for (int i = 0; i < n; ++i){
        scanf("%s", cmd);
        if (strcmp(cmd, "push") == 0){
            scanf("%d", &val);
            if (top >= MAX) printf("Stack Overflow\n");
            else stack[top++] = val;
        } else if (strcmp(cmd, "pop") == 0) {
            if (top <= 0) printf("Stack Underflow\n");
            else printf("%d\n", stack[--top]);
        }
    }
}

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

    process_stack(n);
    return 0;
}

Solving Approach