diff options
Diffstat (limited to 'day1')
| -rw-r--r-- | day1/task5/task5.py | 33 | ||||
| -rw-r--r-- | 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
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