diff --git a/ex00/easyfind.hpp b/ex00/easyfind.hpp
index 6a02e45..9dc85c4 100644
--- a/ex00/easyfind.hpp
+++ b/ex00/easyfind.hpp
@@ -1,3 +1,5 @@
+#pragma once
+
 #include <algorithm>
 
 template <typename T>
diff --git a/ex01/Span.hpp b/ex01/Span.hpp
index 5eb4299..54c0e72 100644
--- a/ex01/Span.hpp
+++ b/ex01/Span.hpp
@@ -1,3 +1,5 @@
+#pragma once
+
 #include <vector>
 
 class Span {
diff --git a/ex02/Makefile b/ex02/Makefile
new file mode 100644
index 0000000..d22e006
--- /dev/null
+++ b/ex02/Makefile
@@ -0,0 +1,58 @@
+# **************************************************************************** #
+#                                                                              #
+#                                                         :::      ::::::::    #
+#    Makefile                                           :+:      :+:    :+:    #
+#                                                     +:+ +:+         +:+      #
+#    By: mmoussou <mmoussou@student.42angouleme.fr  +#+  +:+       +#+         #
+#                                                 +#+#+#+#+#+   +#+            #
+#    Created: 2024/01/22 07:21:18 by mmoussou          #+#    #+#              #
+#    Updated: 2025/08/27 02:35:51 by mmoussou         ###   ########.fr        #
+#                                                                              #
+# **************************************************************************** #
+
+SHELL = bash
+
+RED = \033[0;31m
+GREEN = \033[0;32m
+YELLOW = \033[1;33m
+PURPLE = \e[0;35m
+NC = \033[0m
+DELETE = \x1B[2K
+
+CC = c++
+
+FLAGS = -std=c++98 -Wall -Werror -Wextra
+
+INCLUDES = .
+
+NAME = ex02
+
+SRCS = main.cpp
+
+OBJSDIR = obj/
+OBJS = $(addprefix $(OBJSDIR), $(SRCS:.cpp=.o))
+
+all: $(NAME)
+
+$(NAME): $(OBJS)
+	@$(CC) $(FLAGS) -I$(INCLUDES) $(OBJS) -o $(NAME)
+	@printf "$(NC)$(YELLOW)「✨」 feat($(NAME)): program compiled\n$(NC)"
+
+$(OBJSDIR)%.o: %.cpp
+	@mkdir -p $(@D)
+	@$(CC) $(FLAGS) -I$(INCLUDES) -c $< -o $@
+	@printf "$(NC)$(GREEN)「🔨」 build($<): object compiled\n$(NC)"
+
+clean:
+	@rm -f $(OBJS)
+	@printf "$(NC)$(RED)「🗑️」 clean($(OBJS)): object deleted\n$(NC)"
+
+fclean: clean
+	@rm -f $(NAME)
+	@rm -Rf $(OBJSDIR)
+	@printf "$(NC)$(RED)「🗑️」 fclean($(NAME)): program deleted\n$(NC)"
+
+re: fclean
+	@$(MAKE) -s all
+
+.PHONY: clean fclean all re
diff --git a/ex02/MutantStack.hpp b/ex02/MutantStack.hpp
new file mode 100644
index 0000000..05ce8f7
--- /dev/null
+++ b/ex02/MutantStack.hpp
@@ -0,0 +1,46 @@
+#pragma once
+
+#include <stack>
+#include <string>
+#include <iostream>
+
+template <typename T> class MutantStack : public std::stack<T> {
+public:
+	MutantStack(void) {}
+	MutantStack(const MutantStack &cpy) : std::stack<T>(cpy) {}
+	~MutantStack(void) {}
+
+	MutantStack &operator=(const MutantStack &cpy)
+	{
+		if (this != &cpy)
+		{
+			std::stack<T>::operator=(cpy);
+		}
+		return *this;
+	}
+
+	typedef typename std::stack<T>::container_type::iterator iterator;
+
+	iterator begin(void)
+	{
+		return std::stack<T>::c.begin();
+	}
+	iterator end(void)
+	{
+		return std::stack<T>::c.end();
+	}
+
+	typedef typename std::stack<T>::container_type::const_iterator const_iterator;
+
+	const_iterator begin(void) const
+	{
+		return std::stack<T>::c.begin();
+	}
+	const_iterator end(void) const
+	{
+		return std::stack<T>::c.end();
+	}
+
+private:
+};
+
diff --git a/ex02/main.cpp b/ex02/main.cpp
new file mode 100644
index 0000000..cb89be3
--- /dev/null
+++ b/ex02/main.cpp
@@ -0,0 +1,28 @@
+#include "MutantStack.hpp"
+#include <iostream>
+
+int main()
+{
+	MutantStack<int> mstack;
+	mstack.push(5);
+	mstack.push(17);
+	std::cout << mstack.top() << std::endl;
+	mstack.pop();
+	std::cout << mstack.size() << std::endl;
+	mstack.push(3);
+	mstack.push(5);
+	mstack.push(737);
+	//[...]
+	mstack.push(0);
+	MutantStack<int>::iterator it = mstack.begin();
+	MutantStack<int>::iterator ite = mstack.end();
+	++it;
+	--it;
+	while (it != ite)
+	{
+		std::cout << *it << std::endl;
+		++it;
+	}
+	std::stack<int> s(mstack);
+	return 0;
+}