Hi there! Was given this assignment and I don't even know where to start. Any help will be EXTREMELY appreciated!
Write a C++ program to encrypt a text file (i.e. eFile.txt) using arrays. The text file will contain small letters, capital letters, numbers, spaces and symbols. If the file does not exist, the program should terminate with a "file not found" error message displayed. The output (encrypted text) should be displayed as 50 characters per line.
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The following keys are used. (For example, an 'A' or 'a' will output 'E')
ABCDEFGHIJKLMNOPQRSTUVWXYZ Plain text alphabet
EMNVDLWAUCPOKXQBIZJRYTGSHF Encrypted alphabet