Problem
Design the logic for the game Hangman, in which the user guesses letters in a hidden word. Store the letters of a word in an array of characters. Display a dash for each missing letter. Allow the user to continuously guess a letter until all the letters in the word are guessed correctly. As the user enters each guess, display the word again, filling in the guess if it was correct. For example, if the hidden word is "computer," first display "--------". After the user guesses "p", the display becomes "---p----". Make sure that when a user makes a correct guess, all the matching letters are filled in. For example, if the word is "banana" and the user guesses "a", all three "a" characters must be filled in.