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) {
    int stack[MAX];
    int top=-1;
    char command[20];
  for(int i=0;i<n;i++){
  fgets(command,sizeof(command),stdin);
  command[strcspn(command, "\n")] = 0;
  if(strncmp(command,"push",4)==0)
  {
   int x;
   sscanf(command+5,"%d",&x);
   if(top==MAX-1)
   printf("Stack Overflow\n");
   else
   stack[++top]=x;
  }
  else if(strcmp(command,"pop")==0){
      if(top==-1)
      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