Counting Digits

January 7, 2020

We have a simple homework question today:

Given a range of non-negative integers, count the number of 2s, 5s and 8s in the decimal representations of the digits. For instance, from 295 to 305, there are 9:

295:  2
296:  1
297:  1
298:  2
299:  1
300:  0
301:  0
302:  1
303:  0
304:  0
305:  1
Total 9

Your task is to write a program to count the 2, 5, and 8 digits in the range of integers. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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