GRADE 12 - PRACTICAL 12 - BINARY FILES (29 june 26)

 """GRADE 12 - PRACTICAL 12 - BINARY FILES

A binary file "Scores.dat" stores cricketers' names (string)

and their average runs (float) per match as:

["Rahul Dravid", 52.31]

i) WAF Create() to input records into Scores.dat

ii) WAF Display() to display all records in tabular form

iii) WAF CountAvg() to display the overall average score

     and display players whose average is above 50.

iv) WAF Update() to update the average runs of a given player.

"""