DAY 39 OF 90 · Filter and decide

Inside the window

Easy90 Days of Looping

Inputs

values is a list of 0 to 14 whole numbers, each from 0 to 50. low and high are whole numbers from 0 to 50, and low is at most high.

Create a number count that starts at 0.
Use a loop over values. Add 1 to count when the number is at least low and at most high.
Complete countBetween so it returns count. Return it, do not print it.

With values = [5, 10, 15, 20, 25] and low = 10 and high = 20, countBetween returns 3.

TEST DATA 1: values is [5, 10, 15, 20, 25], low is 10, high is 20

TEST DATA 2: values is [], low is 0, high is 5

Put an if inside the loop to keep, skip or change items. Filtering, mapping and comparing neighbours show up in nearly every array question.

DAY 39 OF 90 · Filter and decide

Easy90 Days of Looping

values is a list of 0 to 14 whole numbers, each from 0 to 50. low and high are whole numbers from 0 to 50, and low is at most high.

Create a number count that starts at 0.
Use a loop over values. Add 1 to count when the number is at least low and at most high.
Complete countBetween so it returns count. Return it, do not print it.

With values = [5, 10, 15, 20, 25] and low = 10 and high = 20, countBetween returns 3.

TEST DATA 1: values is [5, 10, 15, 20, 25], low is 10, high is 20

TEST DATA 2: values is [], low is 0, high is 5

Put an if inside the loop to keep, skip or change items. Filtering, mapping and comparing neighbours show up in nearly every array question.