add solution for hw8

hws/youtube_comments/comment.cpp

@@ -0,0 +1,35 @@
+#include "comment.h"
+
+// Constructor
+Comment::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) {
+    video_id = vid_id;
+    author = auth;
+    comment_id = comm_id;
+    like_count = likes;
+    reply_count = replies;
+    is_reply = isReply;
+    parent_comment_id = parent_id;
+    published_date = pub_date;
+    crawled_date = crawl_date;
+    is_video_owner = isOwner;
+    comment = comm;
+}
+
+// Destructor - clean up all children
+Comment::~Comment() {
+    for (size_t i = 0; i < children.size(); ++i) {
+        delete children[i];
+    }
+}
+
+// Add a child comment to this comment
+void Comment::addChild(Comment* child) {
+    children.push_back(child);
+}
+
+// Like this comment
+void Comment::like() {
+    like_count++;
+}