diff --git a/modules/fedotov_k_set/CMakeLists.txt b/modules/fedotov_k_set/CMakeLists.txt
new file mode 100644
index 000000000..c54b3d08b
--- /dev/null
+++ b/modules/fedotov_k_set/CMakeLists.txt
@@ -0,0 +1,12 @@
+# Declare variables for binaries' names
+get_filename_component(DIR_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
+set(MODULE      "${DIR_NAME}")
+set(LIBRARY     "lib_${MODULE}")
+set(TESTS       "test_${MODULE}")
+
+# Include directory with public headers
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+# Add all submodules
+add_subdirectory(src)
+add_subdirectory(test)
diff --git a/modules/fedotov_k_set/include/set.h b/modules/fedotov_k_set/include/set.h
new file mode 100644
index 000000000..384191c0d
--- /dev/null
+++ b/modules/fedotov_k_set/include/set.h
@@ -0,0 +1,27 @@
+// Copyright 2024 Fedotov Kirill
+#ifndef MODULES_FEDOTOV_K_SET_INCLUDE_SET_H_
+#define MODULES_FEDOTOV_K_SET_INCLUDE_SET_H_
+
+#include <iostream>
+#include <ostream>
+#include <string>
+#include <utility>
+#include <vector>
+#include <algorithm>
+
+class Set {
+ private:
+  std::vector<int> elements;
+
+ public:
+  Set();
+
+  void add(int element);
+  void remove(int element);
+  bool contains(int element) const;
+  Set unionWith(const Set& other) const;
+  Set intersectWith(const Set& other) const;
+  void print() const;
+};
+
+#endif  // MODULES_FEDOTOV_K_SET_INCLUDE_SET_H_
diff --git a/modules/fedotov_k_set/src/CMakeLists.txt b/modules/fedotov_k_set/src/CMakeLists.txt
new file mode 100644
index 000000000..b1dc57b01
--- /dev/null
+++ b/modules/fedotov_k_set/src/CMakeLists.txt
@@ -0,0 +1,18 @@
+set(target ${LIBRARY})
+
+file(GLOB srcs "*.cpp")
+file(GLOB hdrs "../include/*.h")
+set_source_files_properties(${srcs} ${hdrs} PROPERTIES
+    LABELS "${MODULE};Library")
+
+add_library(${target} STATIC ${srcs} ${hdrs})
+set_target_properties(${target} PROPERTIES
+    OUTPUT_NAME ${MODULE}
+    LABELS "${MODULE};Library")
+
+if (UNIX)
+  target_link_libraries(${target} ${CMAKE_THREAD_LIBS_INIT})
+endif (UNIX)
+target_link_libraries(${target} ${LIBRARY_DEPS})
+
+set(LIBRARY_DEPS "${LIBRARY_DEPS};${target}" PARENT_SCOPE)
diff --git a/modules/fedotov_k_set/src/set.cpp b/modules/fedotov_k_set/src/set.cpp
new file mode 100644
index 000000000..22a15ceb4
--- /dev/null
+++ b/modules/fedotov_k_set/src/set.cpp
@@ -0,0 +1,48 @@
+// Copyright 2024 Fedotov Kirill
+
+#include "include/set.h"
+
+Set::Set() {}
+
+void Set::add(int element) {
+  if (!contains(element)) {
+    elements.push_back(element);
+  }
+}
+
+void Set::remove(int element) {
+  auto it = std::find(elements.begin(), elements.end(), element);
+  if (it != elements.end()) {
+    elements.erase(it);
+  }
+}
+
+bool Set::contains(int element) const {
+  return std::find(elements.begin(), elements.end(), element) != elements.end();
+}
+
+Set Set::unionWith(const Set& other) const {
+  Set result = *this;
+  for (int elem : other.elements) {
+    result.add(elem);
+  }
+  return result;
+}
+
+Set Set::intersectWith(const Set& other) const {
+  Set result;
+  for (int elem : elements) {
+    if (other.contains(elem)) {
+      result.add(elem);
+    }
+  }
+  return result;
+}
+
+void Set::print() const {
+  std::cout << "{ ";
+  for (int elem : elements) {
+    std::cout << elem << " ";
+  }
+  std::cout << "}" << std::endl;
+}
diff --git a/modules/fedotov_k_set/test/CMakeLists.txt b/modules/fedotov_k_set/test/CMakeLists.txt
new file mode 100644
index 000000000..cd06c57bb
--- /dev/null
+++ b/modules/fedotov_k_set/test/CMakeLists.txt
@@ -0,0 +1,27 @@
+set(target ${TESTS})
+
+file(GLOB srcs "*.cpp")
+set_source_files_properties(${srcs} PROPERTIES
+    LABELS "${MODULE};Test")
+
+add_executable(${target} ${srcs} ${hdrs})
+set_target_properties(${target} PROPERTIES
+    LABELS "${MODULE};Test")
+
+if (UNIX)
+  target_link_libraries(${target} gtest ${CMAKE_THREAD_LIBS_INIT} pthread)
+endif (UNIX)
+target_link_libraries(${target} gtest ${LIBRARY})
+
+# VS2012 doesn't support correctly the tuples yet,
+# see http://code.google.com/p/googletest/issues/detail?id=412
+if(MSVC)
+    target_compile_definitions(${target} PUBLIC _VARIADIC_MAX=10)
+endif()
+
+add_test(
+    NAME ${MODULE}_gtest
+    COMMAND ${target}
+)
+set_tests_properties (${MODULE}_gtest PROPERTIES
+    LABELS "${MODULE}")
diff --git a/modules/fedotov_k_set/test/test_main.cpp b/modules/fedotov_k_set/test/test_main.cpp
new file mode 100644
index 000000000..0e63463fc
--- /dev/null
+++ b/modules/fedotov_k_set/test/test_main.cpp
@@ -0,0 +1,8 @@
+// Copyright 2024 Fedotov Kirill
+
+#include <gtest/gtest.h>
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}
diff --git a/modules/fedotov_k_set/test/test_set.cpp b/modules/fedotov_k_set/test/test_set.cpp
new file mode 100644
index 000000000..49ddbff69
--- /dev/null
+++ b/modules/fedotov_k_set/test/test_set.cpp
@@ -0,0 +1,139 @@
+// Copyright 2024 Fedotov Kirill
+
+#include <gtest/gtest.h>
+#include "include/set.h"
+
+TEST(SetTest, AddElements) {
+    Set set;
+    set.add(1);
+    set.add(2);
+    set.add(3);
+
+    EXPECT_TRUE(set.contains(1));
+    EXPECT_TRUE(set.contains(2));
+    EXPECT_TRUE(set.contains(3));
+    EXPECT_FALSE(set.contains(4));
+}
+
+TEST(SetTest, RemoveElements) {
+    Set set;
+    set.add(1);
+    set.add(2);
+    set.add(3);
+
+    set.remove(2);
+
+    EXPECT_TRUE(set.contains(1));
+    EXPECT_FALSE(set.contains(2));
+    EXPECT_TRUE(set.contains(3));
+}
+
+TEST(SetTest, UnionWith) {
+    Set set1;
+    set1.add(1);
+    set1.add(2);
+    set1.add(3);
+
+    Set set2;
+    set2.add(3);
+    set2.add(4);
+    set2.add(5);
+
+    Set unionSet = set1.unionWith(set2);
+
+    EXPECT_TRUE(unionSet.contains(1));
+    EXPECT_TRUE(unionSet.contains(2));
+    EXPECT_TRUE(unionSet.contains(3));
+    EXPECT_TRUE(unionSet.contains(4));
+    EXPECT_TRUE(unionSet.contains(5));
+}
+
+TEST(SetTest, IntersectWith) {
+    Set set1;
+    set1.add(1);
+    set1.add(2);
+    set1.add(3);
+
+    Set set2;
+    set2.add(3);
+    set2.add(4);
+    set2.add(5);
+
+    Set intersectSet = set1.intersectWith(set2);
+
+    EXPECT_FALSE(intersectSet.contains(1));
+    EXPECT_FALSE(intersectSet.contains(2));
+    EXPECT_TRUE(intersectSet.contains(3));
+    EXPECT_FALSE(intersectSet.contains(4));
+    EXPECT_FALSE(intersectSet.contains(5));
+}
+
+TEST(SetTest, Print) {
+    Set set;
+    set.add(1);
+    set.add(2);
+    set.add(3);
+
+    testing::internal::CaptureStdout();
+    set.print();
+    std::string output = testing::internal::GetCapturedStdout();
+
+    EXPECT_EQ(output, "{ 1 2 3 }\n");
+}
+
+TEST(SetTest, AddDuplicateElements) {
+    Set set;
+    set.add(1);
+    set.add(1);
+    set.add(2);
+    set.add(2);
+
+    EXPECT_TRUE(set.contains(1));
+    EXPECT_TRUE(set.contains(2));
+
+    testing::internal::CaptureStdout();
+    set.print();
+    std::string output = testing::internal::GetCapturedStdout();
+
+    EXPECT_EQ(output, "{ 1 2 }\n");
+}
+
+TEST(SetTest, RemoveFromEmptySet) {
+    Set set;
+    set.remove(1);
+
+    EXPECT_FALSE(set.contains(1));
+}
+
+TEST(SetTest, EmptySet) {
+    Set set;
+    EXPECT_FALSE(set.contains(1));
+}
+
+TEST(SetTest, UnionWithEmptySet) {
+    Set set1;
+    set1.add(1);
+    set1.add(2);
+
+    Set set2;
+
+    Set unionSet = set1.unionWith(set2);
+
+    EXPECT_TRUE(unionSet.contains(1));
+    EXPECT_TRUE(unionSet.contains(2));
+    EXPECT_FALSE(unionSet.contains(3));
+}
+
+TEST(SetTest, AddElements2) {
+    Set set;
+    set.add(1);
+    set.add(2);
+    set.add(3);
+    set.add(5);
+
+    EXPECT_TRUE(set.contains(1));
+    EXPECT_TRUE(set.contains(2));
+    EXPECT_TRUE(set.contains(3));
+    EXPECT_FALSE(set.contains(4));
+    EXPECT_TRUE(set.contains(5));
+}