C++로 간단하게 구현한 스택

1. #include <cstdlib>
2. #include <iostream>
3. using namespace std;
4. class stack
5. {
6. private:
7. int nArray[10];
8. int top;
9. public:
10. stack();
11. void push(int data);
12. int pop();
13. void print();
14. };
15. stack::stack()
16. {
17. top = -1;
18. }
19. void stack::push(int data)
20. {
21. if(top == 9)
22. {
23. cout << "더이상 들어갈곳이 없습니다!" << endl;
24. return ;
25. }
26. nArray[++top] = data;
27. }
28. int stack::pop()
29. {
30. if(top == -1)
31. {
32. cout << "스택이 비었습니다!" << endl;
33. return 0;
34. }
35. return nArray[top--];
36. }
37. void stack::print()
38. {
39. int i;
40. for(i=0; i<=top; i++)
41. {
42. cout << nArray[i] << " ";
43. }cout << endl;
44. }
45.  
46. int main(int argc, char *argv[])
47. {
48. stack s1;
49. char getChar;
50. int pushNum=0;
51.  
52. do{
53. cout << "a)push b)pop c)print d)end" << endl;
54. cin >> getChar;
55.  
56. switch(getChar)
57. {
58. case 'a':
59. cout << "Push your number : ";
60. cin >> pushNum;
61. s1.push(pushNum);
62. break;
63. case 'b':
64. s1.pop();
65. break;
66. case 'c':
67. s1.print();
68. break;
69. case 'd':
70. return 0;
71. default:
72. cout << "다시 입력하세요" << endl;
73. }
74. }while(~(getChar=='d'));
75.  
76. system("PAUSE");
77. return EXIT_SUCCESS;
78. }