2010 Old Spec

Question 6

The variable table, Table 2, and the Structured English algorithm, Figure 4, describe a simplified version of a noughts and crosses match. A match consists of a user-specified number of games. In this simplified version, the two players complete each game on paper and then enter information about the result of each game into a program that totals the number of games won by each player. Assume that all games have a winner –there are no drawn games.

Table 2

Identifier	Data Type	Purpose
NoOfGamesInMatch	Integer	Stores the number of games in the match (specified by user)
NoOfGamesPlayed	Integer	Stores the number of games played so far
PlayerOneScore	Integer	Stores the number of games won by Player One
PlayerTwoScore	Integer	Stores the number of games won by Player Two
PlayerOneWinsGame	Char	Stores a ’Y’ if Player One won the game and ’N’ otherwise

Figure 4

   PlayerOneScore = 0

   PlayerTwoScore = 0

   OUTPUT "How many games?"

   INPUT NoOfGamesInMatch

   FOR NoOfGamesPlayed = 1 TO NoOfGamesInMatch Do

       OUTPUT "Did Player One win the game (enter Y or N)?"

       INPUT PlayerOneWinsGame

       IF PlayerOneWinsGame = ’Y’

           THEN PlayerOneScore = PlayerOneScore + 1

           ELSE PlayerTwoScore = PlayerTwoScore + 1

       ENDIF

   ENDFOR

   OUTPUT PlayerOneScore

   OUTPUT PlayerTwoScore

What you need to do

1. Write a program for the above algorithm.
2. Test the program by showing the results of a match consisting of three games where Player One wins the first game and Player Two wins the second and third games.