88. Implement Stack Using Array with Push and Pop Operations

#include <stdio.h>
#include <stdint.h>
#include <string.h>

#define MAX 10

void process_stack(int n) {
    int stack[n];
    int top = -1;
    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 - 1){
                printf("Stack Overflow\n");
            }
            else{
                stack[++top]= val;
            }
        }
        else if(strcmp(cmd, "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;
}