diff --git a/lectures/optimization/map_move/map_copy.cpp b/lectures/optimization/map_move/map_copy.cpp
deleted file mode 100644
index d4eb7d6..0000000
--- a/lectures/optimization/map_move/map_copy.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-#include <iostream>
-#include <map>
-#include <chrono>
-#include <vector>
-#include <string>
-
-class LargeClass {
-public:
-    std::vector<int> data;
-    std::string name;
-
-    LargeClass(int size, const std::string& n) : data(size), name(n) {
-        // Simulate work in the constructor
-        for (int i = 0; i < size; ++i) {
-            data[i] = i;
-        }
-    }
-
-    // Define a copy constructor for demonstration purposes
-    LargeClass(const LargeClass& other) : data(other.data), name(other.name) {
-        std::cout << "Copy constructor called\n";
-    }
-
-    // For demonstration, printing the object contents
-    void print() const {
-        std::cout << name << ": " << data[0] << "..." << data[data.size() - 1] << std::endl;
-    }
-};
-
-int main() {
-    const int num_elements = 10000000;
-    const int map_size = 10;
-
-    std::map<int, LargeClass> map_insert;
-
-    for (int i = 0; i < map_size; ++i) {
-        map_insert.insert({i, LargeClass(num_elements, "Insert_" + std::to_string(i))});
-    }
-
-    return 0;
-}
-
diff --git a/lectures/optimization/map_move/map_move.cpp b/lectures/optimization/map_move/map_move.cpp
deleted file mode 100644
index 165de25..0000000
--- a/lectures/optimization/map_move/map_move.cpp
+++ /dev/null
@@ -1,47 +0,0 @@
-#include <iostream>
-#include <map>
-#include <chrono>
-#include <vector>
-#include <string>
-
-class LargeClass {
-public:
-    std::vector<int> data;
-    std::string name;
-
-    LargeClass(int size, const std::string& n) : data(size), name(n) {
-        // Simulate work in the constructor
-        for (int i = 0; i < size; ++i) {
-            data[i] = i;
-        }
-    }
-
-    // Define a copy constructor for demonstration purposes
-    LargeClass(const LargeClass& other) : data(other.data), name(other.name) {
-        std::cout << "Copy constructor called\n";
-    }
-
-    // Define a move constructor
-    LargeClass(LargeClass&& other) noexcept : data(std::move(other.data)), name(std::move(other.name)) {
-        std::cout << "Move constructor called\n";
-    }
-
-    // For demonstration, printing the object contents
-    void print() const {
-        std::cout << name << ": " << data[0] << "..." << data[data.size() - 1] << std::endl;
-    }
-};
-
-int main() {
-    const int num_elements = 10000000;
-    const int map_size = 10;
-
-    std::map<int, LargeClass> map_insert;
-
-    for (int i = 0; i < map_size; ++i) {
-        map_insert.insert({i, LargeClass(num_elements, "Insert_" + std::to_string(i))});
-    }
-
-    return 0;
-}
-