Well, from looking at your work why are you using c and c++ statements. I would suggest either using one or the other. the cin statement in C++ is the equal to a scanf in C. Is this a C program or a C++ program. You seem very

1) If this is a C++ app then use C++ header files ex: #include <iostream>
the dot h at the end of the header files states that it's a C header file C++ header files don't
have an extension.

2) That's the reason it's not working you have C++ statements inside a C program
cout is a C++ statement and is the same as a printf in C

Hope this helps

a cesear cipher is a cipher that shifts the letters down a number of spaces ABCD for example shift a lets say three spaces it would then be a D. So every occurence of the letter A would be replaced with a letter D and so on etc.........

Good try though but at first glance I would say you found it in a cracker jack box and wonders why it doesn't work