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  1. #include <limits.h>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. struct list { int data; list* next; };
  6. list* cons(int n, list* p) {
  7. 	return new list({n,p});
  8. }
  9.  
  10. struct Stack {
  11. 	list* l;
  12. 	int empty() { return l==NULL; } // 스택이 비었는지 검사
  13. 	void push(int n) { l = cons(n,l); }
  14. 	int pop() {
  15. 		if ( empty() ) {
  16. 			cout <<"stack empty" <<endl;
  17. 			return INT_MIN;
  18. 		}
  19. 		int n = l->data;
  20. 		l = l->next;
  21. 		return n;
  22. 	}
  23. };
  24.  
  25.  
  26. int main() {
  27. 	// your code goes here
  28. 	Stack s = { NULL };
  29. 	s.pop();
  30. 	s.push(1);
  31. 	s.push(2);
  32. 	s.push(3);
  33. 	s.push(4);
  34. 	int n1 = s.pop();
  35. 	int n2 = s.pop();
  36. 	cout <<n1 <<", " <<n2 <<endl;
  37.  
  38. 	return 0;
  39. }
Success #stdin #stdout 0s 3456KB
comments ()
stdin
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Standard input is empty
stdout
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stack empty
4, 3
https://ideone.com/5FQ2y5
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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