diff --git a/sem2/TaradaySK/homework_3/FileProcessor.cpp b/sem2/TaradaySK/homework_3/FileProcessor.cpp
new file mode 100644
index 00000000..f295c88e
--- /dev/null
+++ b/sem2/TaradaySK/homework_3/FileProcessor.cpp
@@ -0,0 +1,73 @@
+#include "FileProcessor.h"
+
+#include <algorithm>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <vector>
+
+void processFiles() {
+  std::vector<std::string> lines;
+  std::string text;
+  std::string line = "------------------------------------------------------";
+
+  std::ifstream input("input.txt");
+  if (input.is_open()) {
+    while (std::getline(input, text)) {
+      lines.push_back(text);
+    }
+  }
+  input.close();
+
+  std::ofstream output("output.txt");
+  if (output.is_open()) {
+    output << line << "\n(-_-) Исходный вектор(-_-)\n";
+    for (const auto& s : lines) output << s << "\n";
+
+    int threshold;
+    std::cout << "Введите порог длины: ";
+    std::cin >> threshold;
+    lines.erase(std::remove_if(lines.begin(), lines.end(),
+                               [threshold](const std::string& s) {
+                                 return s.length() < (size_t)threshold;
+                               }),
+                lines.end());
+    output << line << "\n(-_-) После удаления строк < " << threshold
+           << " (-_-)\n";
+    for (const auto& s : lines) output << s << "\n";
+
+    for (auto& s : lines) {
+      for (char& c : s)
+        if (c == ' ') c = '_';
+    }
+    output << line << "\n(-_-) После замены пробелов на _ (-_-)\n";
+    for (const auto& s : lines) output << s << "\n";
+
+    std::string searchWord;
+    std::cout << "Введите слово для поиска: ";
+    std::cin >> searchWord;
+    auto it = std::find_if(lines.begin(), lines.end(),
+                           [&searchWord](const std::string& s) {
+                             return s.find(searchWord) != std::string::npos;
+                           });
+    output << line << "\n(-_-) Результат поиска по " << searchWord
+           << " (-_-)\n";
+    if (it != lines.end())
+      output << *it << "\n";
+    else
+      output << "Слово не найдено\n";
+
+    long long total = 0;
+    for (const auto& s : lines) {
+      for (char c : s)
+        if (c != '_') total++;
+    }
+    output << line << "\n(-_-) Символов без _ (-_-)\n" << total << "\n";
+
+    std::vector<int> lengths;
+    for (const auto& s : lines) lengths.push_back((int)s.length());
+    output << line << "\n(-_-) Длины строк (-_-)\n";
+    for (int l : lengths) output << l << " ";
+  }
+  output.close();
+}
diff --git a/sem2/TaradaySK/homework_3/FileProcessor.h b/sem2/TaradaySK/homework_3/FileProcessor.h
new file mode 100644
index 00000000..422358ba
--- /dev/null
+++ b/sem2/TaradaySK/homework_3/FileProcessor.h
@@ -0,0 +1,8 @@
+#ifndef FILE_PROCESSOR_H
+#define FILE_PROCESSOR_H
+
+#include <string>
+
+void processFiles();
+
+#endif
\ No newline at end of file
diff --git a/sem2/TaradaySK/homework_3/input.txt b/sem2/TaradaySK/homework_3/input.txt
new file mode 100644
index 00000000..3f95ed8e
--- /dev/null
+++ b/sem2/TaradaySK/homework_3/input.txt
@@ -0,0 +1,6 @@
+Hello world
+C++ programming is fun
+Lambda expressions
+STL algorithms
+Short
+A very long string just for testing purposes
\ No newline at end of file
diff --git a/sem2/TaradaySK/homework_3/main.cpp b/sem2/TaradaySK/homework_3/main.cpp
new file mode 100644
index 00000000..f8158f4c
--- /dev/null
+++ b/sem2/TaradaySK/homework_3/main.cpp
@@ -0,0 +1,9 @@
+п»ї#include <iostream>
+
+#include "FileProcessor.h"
+
+int main() {
+  setlocale(LC_ALL, "Russian");
+  processFiles();
+  return 0;
+}
\ No newline at end of file
diff --git a/sem2/TaradaySK/homework_3/output.txt b/sem2/TaradaySK/homework_3/output.txt
new file mode 100644
index 00000000..31b414cd
--- /dev/null
+++ b/sem2/TaradaySK/homework_3/output.txt
@@ -0,0 +1,29 @@
+------------------------------------------------------
+(-_-) Исходный вектор(-_-)
+Hello world
+C++ programming is fun
+Lambda expressions
+STL algorithms
+Short
+A very long string just for testing purposes
+------------------------------------------------------
+(-_-) После удаления строк < 12 (-_-)
+C++ programming is fun
+Lambda expressions
+STL algorithms
+A very long string just for testing purposes
+------------------------------------------------------
+(-_-) После замены пробелов на _ (-_-)
+C++_programming_is_fun
+Lambda_expressions
+STL_algorithms
+A_very_long_string_just_for_testing_purposes
+------------------------------------------------------
+(-_-) Результат поиска по STL (-_-)
+STL_algorithms
+------------------------------------------------------
+(-_-) Символов без _ (-_-)
+86
+------------------------------------------------------
+(-_-) Длины строк (-_-)
+22 18 14 44 
\ No newline at end of file