project_euler.problem_017.sol1

Number letter counts Problem 17: https://projecteuler.net/problem=17

If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.

If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?

NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23 letters and 115 (one hundred and fifteen) contains 20 letters. The use of “and” when writing out numbers is in compliance withBritish usage.

Functions

solution(→ int)

Returns the number of letters used to write all numbers from 1 to n.

Module Contents

project_euler.problem_017.sol1.solution(n: int = 1000) → int

Returns the number of letters used to write all numbers from 1 to n. where n is lower or equals to 1000. >>> solution(1000) 21124 >>> solution(5) 19