From 82383dcaaf1fc3eebe6b6b27565106013ab7d851 Mon Sep 17 00:00:00 2001
From: Andrew <saintruler@gmail.com>
Date: Mon, 4 Mar 2019 20:08:48 +0400
Subject: Day 1 Task 5

---
 day1/task5/task5.py       | 15 +++++++++++++++
 day1/task5/task5_data.txt |  1 +
 2 files changed, 16 insertions(+)
 create mode 100644 day1/task5/task5.py
 create mode 100644 day1/task5/task5_data.txt

diff --git a/day1/task5/task5.py b/day1/task5/task5.py
new file mode 100644
index 0000000..52eafc2
--- /dev/null
+++ b/day1/task5/task5.py
@@ -0,0 +1,15 @@
+with open('task5_data.txt') as f:
+    print(f.read())
+
+with open('task5_data.txt', 'rb+') as input_byte, open('task5_data_new.txt', 'wb') as out:
+    char = input_byte.read(1)
+    while char:
+        binary = list(bin(int(char.hex(), 16))[2:])
+        if binary[-2] == '1':
+            binary[-2] = '0'
+        elif binary[-2] == '0':
+            binary[-2] = '1'
+    
+        out.write(bytes([int(''.join(binary), 2)]))
+        char = input_byte.read(1)
+
diff --git a/day1/task5/task5_data.txt b/day1/task5/task5_data.txt
new file mode 100644
index 0000000..0808eaa
--- /dev/null
+++ b/day1/task5/task5_data.txt
@@ -0,0 +1 @@
+12йцas
-- 
cgit v1.2.3


From 8d49433235daa0ca3e7ad1b330e4215ee86f4f51 Mon Sep 17 00:00:00 2001
From: Andrew <saintruler@gmail.com>
Date: Sat, 9 Mar 2019 20:52:00 +0400
Subject: =?UTF-8?q?=D0=98=D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD?=
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 =?UTF-8?q?=20=D0=B4=D0=BD=D1=8F,=20=D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B0?=
 =?UTF-8?q?=20=D1=81=20=D0=B1=D0=B0=D0=B9=D1=82=D0=B0=D0=BC=D0=B8=20=D0=B8?=
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 =?UTF-8?q?=D0=BE=20=D1=81=D1=82=D1=80=D0=BE=D0=BA.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 day1/task5/task5.py       | 33 +++++++++++++++++++--------------
 day1/task5/task5_data.txt |  2 +-
 2 files changed, 20 insertions(+), 15 deletions(-)

diff --git a/day1/task5/task5.py b/day1/task5/task5.py
index 52eafc2..2869247 100644
--- a/day1/task5/task5.py
+++ b/day1/task5/task5.py
@@ -1,15 +1,20 @@
-with open('task5_data.txt') as f:
-    print(f.read())
-
-with open('task5_data.txt', 'rb+') as input_byte, open('task5_data_new.txt', 'wb') as out:
-    char = input_byte.read(1)
-    while char:
-        binary = list(bin(int(char.hex(), 16))[2:])
-        if binary[-2] == '1':
-            binary[-2] = '0'
-        elif binary[-2] == '0':
-            binary[-2] = '1'
-    
-        out.write(bytes([int(''.join(binary), 2)]))
-        char = input_byte.read(1)
+import os
+
+read_path = os.path.join(os.getcwd(), 'task5_data.txt')
+write_path = os.path.join(os.getcwd(), 'task5_data_new.txt')
+
+if not os.access(read_path, os.R_OK):
+    print('Файл "{}" не доступен для чтения'.format(read_path))
+elif not os.access(write_path, os.W_OK):
+    print('Файл "{}" не доступен для записи'.format(write_path))
 
+else:
+    with open(read_path) as f:
+        print(f.read())
+
+    with open('task5_data.txt', 'rb') as input_byte, open(write_path, 'wb') as out:
+        char = input_byte.read(1)
+        while char:
+            number = int(char.hex(), 16)
+            out.write(bytes([number ^ 2]))
+            char = input_byte.read(1)
diff --git a/day1/task5/task5_data.txt b/day1/task5/task5_data.txt
index 0808eaa..2dfc0ba 100644
--- a/day1/task5/task5_data.txt
+++ b/day1/task5/task5_data.txt
@@ -1 +1 @@
-12йцas
+12йцas
\ No newline at end of file
-- 
cgit v1.2.3