两个队列实现一个栈

include/queue_vec.h

@@ -0,0 +1,16 @@
+#pragma once
+#include <stack>
+namespace yaha {
+class CQueue {
+public:
+    CQueue() {
+    }
+
+    void append_tail(int value);
+    int delete_head();
+
+private:
+    std::stack<int> _stk_tail;
+    std::stack<int> _stk_head;
+};
+}