Tasks

Read the textbook about the details of Vigenére Cipher.

Implement the algorithm by C or C++.

Requirements

You do this lab in a group of two students.

Your program should have input and output as follows:

csci>a.out

--> Please input the key:

receptive



--> Please input the plain text:

wearediscoveredsaveyourself



--> The cipher text is :

nicvtwqngfzgvtwavzvcqyglmgj



-->The original message is:

wearediscoveredsaveyourself



• 　　You should test your program with several runs.