Counting occurrences is used to count how often a value appears in a list.
General Algorithm
set total to zero
for each item in list
if item is a mathch then
add 1 to the counter
end if
next item
Counting values as they are entered (Nat4)
1 2 3 4 5 6 7 | #adults = 0for person in range(10): age = int(input("Enter age")) if age >= 18: adults = adults + 1# |
Counting values is an in an array (Nat5)
1 2 3 4 5 6 7 8 | #ages = [18, 12, 15, 21, 19, 23, 21, 35, 25, 14]#adults = 0for person in range(10): if ages[person] >= 18: adults = adults + 1# |
Adding numbers in an array of records (Higher)
Traversing array by index:
1 2 3 4 5 6 | #adults = 0for person in range(10): if members[person].age >= 18: adults = adults + 1# |
Traversing array by values:
1 2 3 4 5 6 | #adults = 0for person in members: if person.age >= 18: adults = adults + 1# |
