mtlh / digits0toN

https://edabit.com/challenge/j9zed4GnykS48W6vh My solution to this problem in Python and JavaScript.

How Many Digits between 1 and N

https://edabit.com/challenge/j9zed4GnykS48W6vh My solution to this problem in Python and JavaScript.

Python

def digits(number): number-=1 n = 10**(len(str(number))-1) digits = 0 while n>=1: digits+=(number-n+1)*len(str(number)) number=n-1 n//=10 return digits

JavaScript

function digits(number) { if (typeof number === 'bigint') { return bigIntDigits(number) }

let amountOfDigits = 0

for (let i = 1; i <= number; i *= 10) { amountOfDigits += number - i }

return amountOfDigits }

function bigIntDigits(number) { const bigNumber = BigInt(number) let amountOfDigits = 0n

for (let i = 1n; i <= bigNumber; i *= 10n) { amountOfDigits += bigNumber - i }

return amountOfDigits }