diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 7265bcf..b9a1349 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -20,7 +20,7 @@ jobs:
 
       - name: run cmake
         working-directory: ${{github.workspace}}/
-        run: cmake -B./build .
+        run: cmake -B./build -DBUILD_TESTING=ON .
 
       - name: make
         working-directory: ${{github.workspace}}/build
diff --git a/.gitignore b/.gitignore
index 74fca05..0260f71 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,7 +55,9 @@ _deps
 .cache/*
 .vscode/*
 build/*
+cmake-build-debug/*
+.idea/
 
 # Allow expected outputs for tests to be committed
 !**/tests/*.out
-!**/tests/**/*.out
\ No newline at end of file
+!**/tests/**/*.out
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9fc41d1..894754e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,21 +1,54 @@
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.16)
 
-project(homeworks)
+project(homeworks LANGUAGES CXX)
 
-add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/lib)
+option(BUILD_SANDBOX "Build sandbox targets" OFF)
+option(BUILD_ADDITIONAL_TASKS "Build additional tasks" OFF)
+set(BUILD_TASK "" CACHE STRING "Build only one task, for example task_07")
 
-add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/sandbox)
+set(HOMEWORK_TASKS
+    task_01
+    task_02
+    task_03
+    task_04
+    task_05
+    task_06
+    task_07
+    task_08
+    task_09
+    task_10
+    task_11
+    task_12
+    task_13
+    task_14)
 
-add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/additional_tasks)
+list(FIND HOMEWORK_TASKS "${BUILD_TASK}" build_task_index)
 
-file(GLOB_RECURSE tasks_dirs LIST_DIRECTORIES true ".")
+if(BUILD_TASK AND build_task_index EQUAL -1)
+  message(FATAL_ERROR "Unknown BUILD_TASK='${BUILD_TASK}'. Expected one of: ${HOMEWORK_TASKS}")
+endif()
 
-foreach(dir ${tasks_dirs})
-    IF(IS_DIRECTORY ${dir})
-        IF(${dir} MATCHES "task_[0-9][0-9]$" AND NOT ${dir} MATCHES "build")
-            add_subdirectory(${dir})
-        ENDIF()
-    ELSE()
-        CONTINUE()
-    ENDIF()
-endforeach()
+add_subdirectory(lib)
+
+include(CTest)
+
+if(BUILD_TESTING)
+  find_package(GTest REQUIRED)
+  include(GoogleTest)
+endif()
+
+if(BUILD_TASK)
+  add_subdirectory(${BUILD_TASK})
+else()
+  foreach(task IN LISTS HOMEWORK_TASKS)
+    add_subdirectory(${task})
+  endforeach()
+
+  if(BUILD_SANDBOX)
+    add_subdirectory(sandbox)
+  endif()
+
+  if(BUILD_ADDITIONAL_TASKS)
+    add_subdirectory(additional_tasks)
+  endif()
+endif()
diff --git a/README.md b/README.md
index 7b9614b..c85227e 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,7 @@
 ### Советы при работе с codespaces
 
 * При работе с заданиями желательно создавать файлы .hpp и .cpp с заданием, причем .hpp - именно заголовочный файл, который будет импортироваться вами в test.cpp для тестирования 
+* Если вы добавили в `src` отдельный файл с реализацией (например, `algo.cpp`), не забудьте дописать его в `SOURCES` и, при необходимости, в `TEST_SOURCES` внутри `task_N/CMakeLists.txt`. Иначе проект может сконфигурироваться, но упасть на этапе линковки из-за “undefined reference”
 * Если вы работаете через VS Code, то чтобы поменять цель сборки, нажмите Ctrl+p, и введите  **>CMake: Set Launch/Debug Target**
 * Если при запуске тестов консоль остается пустой, проверьте что int main() внутри main.cpp соответствующего задания пуст
 * Если вся среда неожиданно зависла и очень долго пытается соединиться с сервером - попробуйте выключить интернет на 10 секунд и включить снова. Если не помогает - ищите более надежную сеть(
diff --git a/additional_tasks/CMakeLists.txt b/additional_tasks/CMakeLists.txt
index 0b5cd69..28c5893 100644
--- a/additional_tasks/CMakeLists.txt
+++ b/additional_tasks/CMakeLists.txt
@@ -2,14 +2,11 @@ cmake_minimum_required(VERSION 3.10)
 
 project(additional_tasks)
 
-file(GLOB_RECURSE tasks_dirs LIST_DIRECTORIES true ".")
+file(GLOB additional_entries RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*")
 
-foreach(dir ${tasks_dirs})
-    IF(IS_DIRECTORY ${dir})
-        IF(NOT ${dir} MATCHES ".*src.*")
-            add_subdirectory(${dir})
-        ENDIF()
-    ELSE()
-        CONTINUE()
-    ENDIF()
-endforeach()
\ No newline at end of file
+foreach(entry ${additional_entries})
+  if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/${entry}" AND
+     EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${entry}/CMakeLists.txt")
+    add_subdirectory(${entry})
+  endif()
+endforeach()
diff --git a/cmake/AddHomeworkTask.cmake b/cmake/AddHomeworkTask.cmake
new file mode 100644
index 0000000..7857cd4
--- /dev/null
+++ b/cmake/AddHomeworkTask.cmake
@@ -0,0 +1,37 @@
+function(add_homework_task)
+  set(options)
+  set(one_value_args NAME)
+  set(multi_value_args SOURCES TEST_SOURCES INCLUDE_DIRS)
+  cmake_parse_arguments(TASK "${options}" "${one_value_args}" "${multi_value_args}" ${ARGN})
+
+  if(NOT TASK_NAME)
+    message(FATAL_ERROR "add_homework_task requires NAME")
+  endif()
+
+  if(NOT TASK_SOURCES)
+    message(FATAL_ERROR "add_homework_task(${TASK_NAME}) requires SOURCES")
+  endif()
+
+  add_executable(${TASK_NAME} ${TASK_SOURCES})
+  target_compile_features(${TASK_NAME} PRIVATE cxx_std_23)
+  target_include_directories(
+    ${TASK_NAME}
+    PRIVATE
+      "${CMAKE_CURRENT_SOURCE_DIR}/src"
+      ${TASK_INCLUDE_DIRS}
+  )
+  target_link_libraries(${TASK_NAME} PRIVATE Utils)
+
+  if(BUILD_TESTING AND TASK_TEST_SOURCES)
+    add_executable(${TASK_NAME}_tests ${TASK_TEST_SOURCES})
+    target_compile_features(${TASK_NAME}_tests PRIVATE cxx_std_23)
+    target_include_directories(
+      ${TASK_NAME}_tests
+      PRIVATE
+        "${CMAKE_CURRENT_SOURCE_DIR}/src"
+        ${TASK_INCLUDE_DIRS}
+    )
+    target_link_libraries(${TASK_NAME}_tests PRIVATE GTest::gtest_main Utils)
+    gtest_discover_tests(${TASK_NAME}_tests)
+  endif()
+endfunction()
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 71a6384..9a554c6 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -1,10 +1,6 @@
-cmake_minimum_required(VERSION 3.10)
-project(Utils)
+add_library(Utils
+  src/util.cpp
+)
 
-set(CMAKE_CXX_STANDARD 23)
-
-file(GLOB_RECURSE lib_source_list "src/*.cpp" "src/*.hpp")
-
-add_library(${PROJECT_NAME} ${lib_source_list})
-
-target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)
\ No newline at end of file
+target_compile_features(Utils PUBLIC cxx_std_23)
+target_include_directories(Utils PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)
diff --git a/sandbox/CMakeLists.txt b/sandbox/CMakeLists.txt
index 4205f82..8a5dd1e 100644
--- a/sandbox/CMakeLists.txt
+++ b/sandbox/CMakeLists.txt
@@ -2,14 +2,11 @@ cmake_minimum_required(VERSION 3.10)
 
 project(sendbox)
 
-file(GLOB_RECURSE tasks_dirs LIST_DIRECTORIES true ".")
+file(GLOB sandbox_entries RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*")
 
-foreach(dir ${tasks_dirs})
-    IF(IS_DIRECTORY ${dir})
-        IF(NOT ${dir} MATCHES ".*src.*" AND NOT ${dir} MATCHES ".*tests.*")
-            IF(EXISTS ${dir}/CMakeLists.txt)
-                add_subdirectory(${dir})
-            ENDIF()
-        ENDIF()
-    ENDIF()
-endforeach()
\ No newline at end of file
+foreach(entry ${sandbox_entries})
+  if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/${entry}" AND
+     EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${entry}/CMakeLists.txt")
+    add_subdirectory(${entry})
+  endif()
+endforeach()
diff --git a/task_01/CMakeLists.txt b/task_01/CMakeLists.txt
index 511e893..af6b430 100644
--- a/task_01/CMakeLists.txt
+++ b/task_01/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_01
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_02/CMakeLists.txt b/task_02/CMakeLists.txt
index 511e893..34f6700 100644
--- a/task_02/CMakeLists.txt
+++ b/task_02/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_02
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_03/CMakeLists.txt b/task_03/CMakeLists.txt
index 511e893..015ff50 100644
--- a/task_03/CMakeLists.txt
+++ b/task_03/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_03
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_04/CMakeLists.txt b/task_04/CMakeLists.txt
index 511e893..69c168e 100644
--- a/task_04/CMakeLists.txt
+++ b/task_04/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+add_homework_task(
+  NAME task_04
+  SOURCES
+    src/main.cpp
+    src/stack.cpp
+  TEST_SOURCES
+    src/stack.cpp
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_05/CMakeLists.txt b/task_05/CMakeLists.txt
index 511e893..eeb9187 100644
--- a/task_05/CMakeLists.txt
+++ b/task_05/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+add_homework_task(
+  NAME task_05
+  SOURCES
+    src/main.cpp
+    src/topology_sort.cpp
+  TEST_SOURCES
+    src/test.cpp
+    src/topology_sort.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_06/CMakeLists.txt b/task_06/CMakeLists.txt
index 511e893..a3bf69f 100644
--- a/task_06/CMakeLists.txt
+++ b/task_06/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_06
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_07/CMakeLists.txt b/task_07/CMakeLists.txt
index 511e893..ae8203f 100644
--- a/task_07/CMakeLists.txt
+++ b/task_07/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_07
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_08/CMakeLists.txt b/task_08/CMakeLists.txt
index 511e893..b926d70 100644
--- a/task_08/CMakeLists.txt
+++ b/task_08/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_08
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_09/CMakeLists.txt b/task_09/CMakeLists.txt
index 511e893..a0e719a 100644
--- a/task_09/CMakeLists.txt
+++ b/task_09/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_09
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_10/CMakeLists.txt b/task_10/CMakeLists.txt
index 511e893..43ec666 100644
--- a/task_10/CMakeLists.txt
+++ b/task_10/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_10
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_11/CMakeLists.txt b/task_11/CMakeLists.txt
index 511e893..d18241a 100644
--- a/task_11/CMakeLists.txt
+++ b/task_11/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_11
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_12/CMakeLists.txt b/task_12/CMakeLists.txt
index 511e893..da02df0 100644
--- a/task_12/CMakeLists.txt
+++ b/task_12/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_12
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_13/CMakeLists.txt b/task_13/CMakeLists.txt
index 511e893..6e0516f 100644
--- a/task_13/CMakeLists.txt
+++ b/task_13/CMakeLists.txt
@@ -1,40 +1,11 @@
-
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-
-include_directories(${GTEST_INCLUDE_DIRS})
-
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_13
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)
diff --git a/task_14/CMakeLists.txt b/task_14/CMakeLists.txt
index fb990c2..bbb6014 100644
--- a/task_14/CMakeLists.txt
+++ b/task_14/CMakeLists.txt
@@ -1,37 +1,11 @@
-cmake_minimum_required(VERSION 3.10)
-
-get_filename_component(PROJECT_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
-string(REPLACE " " "_" PROJECT_NAME ${PROJECT_NAME})
-project(${PROJECT_NAME} C CXX)
-
-set(CMAKE_CXX_STANDARD 23)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-file(GLOB_RECURSE source_list "src/*.cpp" "src/*.hpp")
-file(GLOB_RECURSE main_source_list "src/main.cpp")
-file(GLOB_RECURSE test_source_list "src/*.cpp")
-file(GLOB_RECURSE test_list "src/*test.cpp")
-
-list(REMOVE_ITEM test_source_list ${main_source_list})
-list(REMOVE_ITEM source_list ${test_list})
-
-include_directories(${PROJECT_NAME} PUBLIC src)
-
-add_executable(${PROJECT_NAME} ${source_list})
-target_link_libraries(${PROJECT_NAME} PUBLIC Utils)
-
-# Locate GTest
-enable_testing()
-find_package(GTest REQUIRED)
-include_directories(${GTEST_INCLUDE_DIRS})
-
-# Link runTests with what we want to test and the GTest and pthread library
-add_executable(${PROJECT_NAME}_tests ${test_source_list})
-target_link_libraries(
-  ${PROJECT_NAME}_tests
-  GTest::gtest_main
-  Utils
+include(${CMAKE_SOURCE_DIR}/cmake/AddHomeworkTask.cmake)
+
+# If you add extra implementation files in src/, list them in SOURCES and
+# TEST_SOURCES explicitly. CMake will not pick new .cpp files automatically.
+add_homework_task(
+  NAME task_14
+  SOURCES
+    src/main.cpp
+  TEST_SOURCES
+    src/test.cpp
 )
-
-include(GoogleTest)
-gtest_discover_tests(${PROJECT_NAME}_tests)