From c8fbe0ebd37a6070bb62c89be276539319cd06ec Mon Sep 17 00:00:00 2001
From: pajjilykk <pgoldendragon@gmail.com>
Date: Wed, 1 Apr 2026 10:14:54 +0700
Subject: [PATCH] lab2

---
 lab2/in      |  4 ++++
 lab2/main.py | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 lab2/in
 create mode 100644 lab2/main.py

diff --git a/lab2/in b/lab2/in
new file mode 100644
index 0000000..13a377d
--- /dev/null
+++ b/lab2/in
@@ -0,0 +1,4 @@
+Hello bookkeeper!!
+Приветт мирр!!
+Moooon 10000
+ääää ÖÖ
\ No newline at end of file
diff --git a/lab2/main.py b/lab2/main.py
new file mode 100644
index 0000000..17242f5
--- /dev/null
+++ b/lab2/main.py
@@ -0,0 +1,62 @@
+def process_line(text: str) -> str:
+    if not text:
+        return text
+
+    result = [text[0]]
+
+    for i in range(1, len(text)):
+        current_char = text[i]
+        last_written = result[-1]
+
+        if current_char == last_written:
+            result.append(" ")
+        else:
+            result.append(current_char)
+
+    return "".join(result)
+
+
+def ask_file_name(prompt: str) -> str:
+    while True:
+        file_name = input(prompt).strip()
+        if file_name:
+            return file_name
+        print("Ошибка: имя файла не может быть пустым. Повторите ввод.")
+
+
+def read_lines_with_retry() -> tuple[str, list[str]]:
+    while True:
+        input_file = ask_file_name("Введите имя входного файла: ")
+        try:
+            with open(input_file, "r", encoding="utf-8") as fin:
+                return input_file, fin.readlines()
+        except (OSError, UnicodeError) as error:
+            print(f"Ошибка чтения файла '{input_file}': {error}")
+            print("Попробуйте снова.")
+
+
+def write_lines_with_retry(lines: list[str]) -> str:
+    while True:
+        output_file = ask_file_name("Введите имя выходного файла: ")
+        try:
+            with open(output_file, "w", encoding="utf-8") as fout:
+                fout.writelines(lines)
+            return output_file
+        except (OSError, UnicodeError) as error:
+            print(f"Ошибка записи файла '{output_file}': {error}")
+            print("Попробуйте снова.")
+
+
+def main() -> None:
+    _, lines = read_lines_with_retry()
+
+    processed_lines = [process_line(line) for line in lines]
+    output_file = write_lines_with_retry(processed_lines)
+
+    print("Обработка завершена.")
+    print(f"Результат записан в файл {output_file}")
+
+
+if __name__ == "__main__":
+    main()
+