#include <stdio.h> #include <stdint.h> #include <string.h> #define MAX 10 void push(int stack[], int *top, int val){ if(*top == MAX){ printf("Stack Overflow\n"); } else{ stack[*top] = val; (*top)++; } } void pop(int stack[], int *top){ if(*top == 0){ printf("Stack Underflow\n"); } else{ (*top)--; printf("%d\n", stack[*top]); } } void process_stack(int n) { // Your logic here int top = 0; char input[10]; int stack[MAX]; for(int i = 0; i<n ;i++){ scanf("%s",&input); int val; if(strcmp(input,"push") == 0){ scanf("%d",&val); push(stack,&top, val); } else{ pop(stack,&top); } } } int main() { int n; scanf("%d", &n); getchar(); // Consume newline after number process_stack(n); return 0; }
Test Cases
Test Results
Input
5 push 10 push 20 pop pop pop
Expected Output
20 10 Stack Underflow