Update linkedlist_stack.cpp

仿写的链表栈

codes/cpp/chapter_stack_and_queue/linkedlist_stack.cpp

@@ -1,8 +1,40 @@
 /*
  * File: linkedlist_stack.cpp
- * Created Time: 2022-11-25
+ * Created Time: 2022-11-28
- * Author: Krahets (krahets@163.com)
+ * Author: qualifier1024 (2539244001@qq.com)
  */
 
 #include "../include/include.hpp"
+#include<list>
 
+/* 基于链表实现的栈 */
+class LinkedListStack {
+    list<int> lst;
+public:
+    LinkedListStack() {
+        // 初始化空链表
+        lst.clear();
+    }
+    /* 获取栈的长度 */
+    int size() {
+        return lst.size();
+    }
+    /* 判断栈是否为空 */
+    bool isEmpty() {
+        return lst.empty();
+    }
+    /* 入栈 */
+    void push(int num) {
+        lst.push_back(num);
+    }
+    /* 出栈 */
+    int pop() {
+        int oldTop = lst.back();
+        lst.pop_back();
+        return oldTop;
+    }
+    /* 访问栈顶元素 */
+    int top() {
+        return lst.back();
+    }
+};