diff --git a/lab04.cbp b/lab04.cbp
index 01a158d..47c77e1 100644
--- a/lab04.cbp
+++ b/lab04.cbp
@@ -35,11 +35,8 @@
 		<Unit filename=".gitignore">
 			<Option target="&lt;{~None~}&gt;" />
 		</Unit>
-		<Unit filename="calc_bits.cpp" />
 		<Unit filename="lab04.h" />
 		<Unit filename="main.cpp" />
-		<Unit filename="source.cpp" />
-		<Unit filename="students.cpp" />
 		<Extensions>
 			<lib_finder disable_auto="1" />
 		</Extensions>
diff --git a/main.cpp b/main.cpp
index 30a4847..361d092 100644
--- a/main.cpp
+++ b/main.cpp
@@ -59,40 +59,3 @@ int main() {
 }
 
 
-int main_calc() {
-    uint16_t operand1, operand2;
-    char operation;
-
-    cout << "Enter the first operand (in hexadecimal): ";
-    cin >> std::hex >> operand1;
-
-    cout << "Enter the bitwise operation (&, |, or ^): ";
-    cin >> operation;
-
-    cout << "Enter the second operand (in hexadecimal): ";
-    cin >> std::hex >> operand2;
-
-    uint16_t result = perform_bitwise_operation(operand1, operation, operand2);
-
-    cout << "\nCalculation Result:" << endl;
-    print_calculation(result);
-
-    return 0;
-}
-
-int main_students() {
-    // Student
-    Student students[3] = {
-        Student("Alice", 2019, 4.5, 0, 3, nullptr),
-        Student("Bob", 2019, 4.2, 1, 2, nullptr),
-        Student("Charlie", 2019, 4.7, 1, 4, nullptr) // Обратите внимание, что тут нет указателя на groupLeader
-    };
-
-    // Details
-    for (int i = 0; i < 3; ++i) {
-        std::cout << "\nDetails of Student " << i + 1 << ":" << std::endl;
-        printStudentDetails(students[i]);
-    }
-
-    return 0;
-}