#include <stdio.h> #include <stdint.h> #include <string.h> #define MAX 10 void process_stack(int n) { // Your logic here int Stack[MAX] = { 0 }; char cmd[5] = { 0 }; int value = 0; int top = -1; for(int i =0; i < n; i++){ scanf("%s", cmd); if(strcmp(cmd , "push") == 0) { scanf("%d", &value); (top == (MAX - 1)) ? printf("Stack Overflow\n") : Stack[++top] = value; } else if (strcmp(cmd , "pop") == 0) { (top < 0) ? printf("Stack Underflow\n") : printf("%d\n",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