From ae09c210522673dcf431795a287f5fa90cdfb12c Mon Sep 17 00:00:00 2001
From: Muh Yusuf <yusufmuhyusuh@gmail.com>
Date: Sun, 31 Aug 2025 21:21:36 +0700
Subject: [PATCH 1/2] feat: memperbaiki imp copy cons

---
 src/stack.cpp                     |  2 --
 src/stack_linked_list.cpp         | 13 +++++++++----
 src/stack_templates_implement.cpp |  3 ++-
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/stack.cpp b/src/stack.cpp
index 8cea5a3..5997737 100644
--- a/src/stack.cpp
+++ b/src/stack.cpp
@@ -70,7 +70,6 @@ class Stack{
             }
 
 };
-#ifndef UNIT_TEST
 int main(){
     Stack stack1(100);
     stack1.push(1);
@@ -83,4 +82,3 @@ int main(){
     std::cout << "element paling atas: " << stack1.top() << std::endl;
     return 0;
 }
-#endif UNIT_TEST
\ No newline at end of file
diff --git a/src/stack_linked_list.cpp b/src/stack_linked_list.cpp
index a87c0b5..f0c5151 100644
--- a/src/stack_linked_list.cpp
+++ b/src/stack_linked_list.cpp
@@ -50,13 +50,18 @@ class Stack{
                 head = nullptr;
                 return *this;
             }
-            head = new Node(obj.head->data);
+            //head adalah object saat ini
+            //obj adalah objek lain yang ingin di copy
+            head = new Node(obj.head->data); 
+            //isi node pertama yang menunjuk head dengan mengambil dari object lain(ingin di copy)
             Node* curr = head;
+            //pakai curr sebagai pointer penunjuk 
             Node* temp = obj.head->next;
+            //inialisasi temp sebagai pointer untuk mengerakkan obj.head(object lain)
             while(temp != nullptr){
-                curr->next = new Node(temp->data);
-                curr = curr->next;
-                temp = temp->next;
+                curr->next = new Node(temp->data); // insert node dari object lain
+                curr = curr->next; //jalankan pointer curr
+                temp = temp->next; //jalankan pointet temp
             }
             return *this;
         }
diff --git a/src/stack_templates_implement.cpp b/src/stack_templates_implement.cpp
index 15e4cd3..6daf3df 100644
--- a/src/stack_templates_implement.cpp
+++ b/src/stack_templates_implement.cpp
@@ -39,10 +39,11 @@ class Stack{
         //copy constructor
         Stack(const Stack& obj){
             size = obj.size; //supaya tiap object konsisten size yg dimiliki
+            capacity = obj.capacity;
             arr = new type[capacity]; //alokasi ulang arr
             for(size_t i = 0;i < size;i++){
                 arr[i] = obj.arr[i];
-            }   
+            }     
         }
         Stack& operator=(const Stack& obj){
             //this disini menunjuk objek saat ini

From c29ba34629123f1ef309ac650937a5c7d742e93f Mon Sep 17 00:00:00 2001
From: Muh Yusuf <yusufmuhyusuh@gmail.com>
Date: Sun, 31 Aug 2025 21:26:20 +0700
Subject: [PATCH 2/2] add: contributing.md

---
 CONTRIBUTING.MD | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 CONTRIBUTING.MD

diff --git a/CONTRIBUTING.MD b/CONTRIBUTING.MD
new file mode 100644
index 0000000..e2c2823
--- /dev/null
+++ b/CONTRIBUTING.MD
@@ -0,0 +1,9 @@
+# Contributing Guide
+
+Terima kasih sudah ingin berkontribusi! 🎉
+
+1. Fork repo ini.
+2. Buat branch baru: `git checkout -b feature-nama`.
+3. Commit perubahan dengan pesan jelas.
+4. Push ke branch.
+5. Buka Pull Request.