Can anyone help me what functions can I use to decode texts?
There is a file named input.txt.
When I press 1, the texts that are in the input.txt will be transferred to the program.
Then after pressing 1, when I press 2, the texts that are encoded into the program from the input.txt will be transferred to the file named output.txt or decoded.txt.
The output.txt or decoded.txt is not yet present, the program will be the one that should create the file.