avoid general usage of std namespace
avoid general usage of std namespace
Re-arrange nested if-then-else statements.
Replace if-then sequences with only one switch-case statement
Add a new method to the class Game: void nextPlayer()
Replace if-then statements with arithmetical and align operators where it was needed.
Reduce logical / arithmetical expressions
Re-place do-while loop with a for loop to encapsulate glabal static variable notAWinner
Evaluate the value of notAWinner loop-variable at the end of block to make the code more readable