I have a main.cc file that takes an input file as an argument. I then want to print stuff into an output file with the same name as the input file but with a different extension. The input files are ...

I'm soooo close to finishing this program, but I can't remember how to do this. I have read a string from a file because I needed to get it one word at a time, so I used >>. So now how can I store the ...