diff --git a/sem1/andreychetporov/hw2/task1.cpp b/sem1/andreychetporov/hw2/task1.cpp
deleted file mode 100644
index 9ab7f590..00000000
--- a/sem1/andreychetporov/hw2/task1.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <iostream>
-
-int main()
-{
-    setlocale(LC_ALL, "RUS");
-    int number;
-    std::cout << "введите число в десятичной ";
-    std::cin >> number;
-    std::cout << "число в восьмеричной: " << std::oct << number << '\n';
-    std::cout << "число в шестнадцатиричной: " << std::hex << number;
-}
diff --git a/sem1/andreychetporov/hw2/task2.cpp b/sem1/andreychetporov/hw2/task2.cpp
deleted file mode 100644
index 6b4ad722..00000000
--- a/sem1/andreychetporov/hw2/task2.cpp
+++ /dev/null
@@ -1,30 +0,0 @@
-
-
-#include <iostream>
-
-int main()
-{
-    int n;
-    setlocale(LC_ALL, "RU");
-    for (int i = 2; i < 100000; i++) {
-        n = i;
-        while (n != 1) {
-            if (n % 2 == 0) {
-                n /= n;
-            }
-            else {
-                n = (3 * n + 1) / 2;
-            }
-            if (n == 1) {
-                std::cout << "число " << i << " удовлетворяет гипотезе Сиракуза"<<"\n";
-            }
-
-        }
-
-
-
-
-    }
-    std::cout << "первые 100000 натуральных чисел удовлетворяют гипотезе Сиракуза";
-}
-
diff --git a/sem1/andreychetporov/minihw2_4.cpp b/sem1/andreychetporov/minihw2_4.cpp
new file mode 100644
index 00000000..41d33570
--- /dev/null
+++ b/sem1/andreychetporov/minihw2_4.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <vector>
+#include <string>
+
+auto func = [](std::vector<std::string>& vec) -> std::vector<int> {
+    std::vector<int> len;
+    for (int i = 0; i < vec.size(); i++) {
+        len.push_back(vec[i].length());
+        std::cout << "string: " << vec[i] << " has length " <<  vec[i].length() << "\n";
+    }
+    return len;
+    };
+
+int main() {
+    std::vector<std::string> vec{ "1293490890", "jsfaoikjhoias", "KSOFJHOioihsfiuoah928", "sajfoihj38fHf_9f"};
+    func(vec);
+}