getting errors stray ‘\342’ and ‘\200’ and ‘\214’ [duplicate]

Answer 1

Apart from what was said you have also one more error related to using variable player_choice outside its scope.

while ( more )
{
    cout << "enter C to cooperate, D to defect, Q to quit\n";
    char player_choice;
    // other stuff
}

if ( player_choice == 'Q' )
{
    cout << "Game is Over!\n";
    more = false;
}

It was defined in the while loop before the code snippet above and was destroyed after exiting the loop. So using it in this if statement is illegal.