diff --git a/cpp1.cpp b/cpp1.cpp
new file mode 100644
index 0000000..00ea49d
--- /dev/null
+++ b/cpp1.cpp
@@ -0,0 +1,31 @@
+#include <iostream>
+
+constexpr size_t ARRSIZ = 5;
+
+int increment(int n) {
+    return n + 1;
+}
+
+template<size_t N>
+void print(const int (&arr)[N]){
+
+    for (int i = 0; i < N; ++i)
+        std::cout << arr[i] << "\n";
+    std::cout << std::endl;
+}
+
+void my_objective(int* arr, const size_t N, int (*f)(int)) {
+    for (int i = 0; i < N; ++i)
+        arr[i] = f(arr[i]);
+}
+
+int main() {
+
+    int arr[ARRSIZ] = {0, 1, 2, 3, 4};
+    my_objective(arr, ARRSIZ, increment);
+
+    print(arr);
+
+    std::cin.get();
+    
+}
diff --git a/cpp2.cpp b/cpp2.cpp
new file mode 100644
index 0000000..03cad54
--- /dev/null
+++ b/cpp2.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+#include <vector>
+
+
+void print(const std::vector<int>& vec){
+    for(const int n : arr)
+        std::cout << n << "\n";
+    std::cout << std::endl;
+}
+
+void my_objective(std::vector<int>& vec, int (*f)(int)) {
+    for (int i = 0; i < vec.size(); ++i)
+        vec[i] = f(vec[i]);
+}
+
+int main() {
+    std::vector<int> vec = {0, 1, 2, 3, 4};
+
+    my_objective(vec, [](int n){ return n + 1;});
+
+    print(vec);
+
+    std::cin.get();
+    
+}
diff --git a/cpp3.cpp b/cpp3.cpp
new file mode 100644
index 0000000..6698b3b
--- /dev/null
+++ b/cpp3.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+#include <vector>
+#include <functional>
+
+void print(const std::vector<int>& vec){
+    for(const int n : arr)
+        std::cout << n << "\n";
+    std::cout << std::endl;
+}
+
+void my_objective(std::vector<int>& vec, const std::function<int(int)>& f) {
+    for (int i = 0; i < vec.size(); ++i)
+        vec[i] = f(vec[i]);
+}
+
+int main() {
+    std::vector<int> vec = {0, 1, 2, 3, 4};
+
+    my_objective(vec, [&](int n){ return n + 1;});
+
+    print(vec);
+
+    std::cin.get();
+    
+}
diff --git a/cpp4.cpp b/cpp4.cpp
new file mode 100644
index 0000000..8137375
--- /dev/null
+++ b/cpp4.cpp
@@ -0,0 +1,34 @@
+#include <iostream>
+#include <vector>
+
+struct increment{
+
+    int operator()(int n) const{
+        return n + 1;
+    }
+};
+
+
+void my_objective(std::vector<int>& vec, const increment& f) {
+    for (int i = 0; i < vec.size(); ++i)
+        vec[i] = f(vec[i]);
+}
+
+void print(const std::vector<int>& vec){
+    for(const int n : vec)
+        std::cout << n << "\n";
+    std::cout << std::endl;
+}
+
+
+int main() {
+    std::vector<int> vec = {0, 1, 2, 3, 4};
+    const increment functor;
+
+    my_objective(vec, functor);
+
+    print(vec);
+
+    std::cin.get();
+    
+}