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Algorithm : Counts

A variable (integer) is used to count values which satisfy a certain condition.

Remember counting always starts from 0 so the value of the variable must be initialised to 0.

Example

20 marks are to be input. How many of them are over 50?

We will use a variable called 'counter' to store the number of marks over 50.
The pseudocode algorithm is..

counter := 0
for 20 times do  
  input (mark)  
  if the mark is over 50 then
    add 1 to counter
  end if  
end do    
output (counter)