So, first off lemme explain what a substitution code is in case you don't know. In cryptography, it's a system by which one letter is replaced with another predetermined letter. For example, if "I" turns to "E", and "F" turns to "V", the word "If" would be written as "Ev".
I'm wondering if it's possible to write a program in C++ which does this in a string for me. I'm a heavy beginner, as in only a few weeks of classes, but I think I'm getting closer and closer, but I also think I'm missing some key component knowledge.
If someone could tell me that it can actually be done, -please- do, and if you could list the concepts I'd need knowledge of, that would be even more perfect.
Tanxies for the help.