nd, Im coding within linux C++, I've finished up the code but there are errors could you please help fix all of them and explain what the errors mean?...

Hi I am completing the assignment called Mastermind, Im coding within linux C++, I've finished up the code but there are errors could you please help fix all of them and explain what the errors mean? ill paste the instructions for the assignment here.

Object of the Game

The computer picks a sequence of 4 pegs, each one being one of any of six colors.

The object of the game is to guess the exact positions of the colors in the computer's sequence in as few guesses as possible. After each guess, the computer gives feedback of exact and partial matches.