add solution for hw8

hws/youtube_comments/comment.h

@@ -0,0 +1,41 @@
+#ifndef COMMENT_H
+#define COMMENT_H
+
+#include <string>
+#include <vector>
+
+// Comment class to store information about a YouTube comment
+class Comment {
+public:
+    // Comment fields as described in the json file
+    std::string video_id;
+    std::string author;
+    std::string comment_id;
+    int like_count;
+    int reply_count;
+    bool is_reply;
+    std::string parent_comment_id;
+    std::string published_date;
+    std::string crawled_date;
+    bool is_video_owner;
+    std::string comment;
+    
+    // Vector to store child comments (replies to this comment)
+    std::vector<Comment*> children;
+    
+    // Constructor
+    Comment(std::string vid_id, std::string auth, std::string comm_id, int likes,
+            int replies, bool isReply, std::string parent_id, std::string pub_date,
+            std::string crawl_date, bool isOwner, std::string comm);
+    
+    // Destructor - clean up all children
+    ~Comment();
+    
+    // Add a child comment to this comment
+    void addChild(Comment* child);
+    
+    // Like this comment
+    void like();
+};
+
+#endif // COMMENT_H