Cryptography. The science of developing secret codes has interested many people for centur...

Cryptography. The science of developing secret codes has interested many people for centuries. Some of the simplest codes involve replacing a character, or a group of characters, with another character, or group of characters. To easily decode these messages, the decoder needs the “key” that shows the replacement characters. In recent times, computers have been used very successfully to decode many codes that initially were assumed to be unbreakable. The next set of problems considers simple codes and schemes for decoding them. Generate files to test the programs.

Another simple code encodes a message in text such that the true message is represented by the first letter of each word. There are no spaces between the words, but the decoded string of characters can easily be separated into words by a person. Write a program to read a data file and determine the secret message stored by the sequence of first letters of the words.