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_arr[MAX];
    char instruction[10];
    int value;
    int top=-1;
    for(int i=0; i<n; i++){
        scanf("%s", instruction);

        if(strcmp(instruction,"push")==0){
            scanf("%d", &value);
            if(top == MAX-1){
                printf("Stack Overflow\n");
            }
            else{
                stack_arr[++top] = value;
            }
        }
        else if(strcmp(instruction, "pop")==0){
            if(top<0){
                printf("Stack Underflow\n");
            }
            else{
                printf("%d\n", stack_arr[top--]);
            }
        }
    }
}

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

    process_stack(n);
    return 0;
}

Solving Approach