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 arr[MAX];
    int i=-1;
    char mode[10];
    int value;
    for(int j=0;j<n;j++){
        scanf("%s ", mode);
        if(strcmp(mode,"push") == 0){
            scanf("%d",&value);
            if(i < (MAX-1)){
                i++;
                arr[i] = value;
            }
            else{
                printf("Stack Overflow\n");
            }
        }
        else if(strcmp(mode,"pop") == 0){
            if(i >=0){
                printf("%d\n",arr[i]);
                i--;
            }
            else
                printf("Stack Underflow\n");
        }
    }
}

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

    process_stack(n);
    return 0;
}

Solving Approach