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Given a string s, write a method (function) that will return true if its a valid single integer or floating number or false if its not. Valid examples, should return true: isDigit("3") isDigit(" 3 ") isDigit("-3.23") should return false: isDigit("3-4") isDigit(" 3 5") isDigit("3 5") isDigit("zero") Solution: def isDigit(string: str) -> bool: return string.strip().lstrip("-").replace(".", "").isd..

Description: Remove all exclamation marks from sentence but ensure a exclamation mark at the end of string. For a beginner kata, you can assume that the input data is always a non empty string, no need to verify it. Examples remove("Hi!") === "Hi!" remove("Hi!!!") === "Hi!" remove("!Hi") === "Hi!" remove("!Hi!") === "Hi!" remove("Hi! Hi!") === "Hi Hi!" remove("Hi") === "Hi!" Solution: const remo..

Description: Remove n exclamation marks in the sentence from left to right. n is positive integer. Examples remove("Hi!",1) === "Hi" remove("Hi!",100) === "Hi" remove("Hi!!!",1) === "Hi!!" remove("Hi!!!",100) === "Hi" remove("!Hi",1) === "Hi" remove("!Hi!",1) === "Hi!" remove("!Hi!",100) === "Hi" remove("!!!Hi !!hi!!! !hi",1) === "!!Hi !!hi!!! !hi" remove("!!!Hi !!hi!!! !hi",3) === "Hi !!hi!!! !..

Write function RemoveExclamationMarks which removes all exclamation marks from a given string. Solution: class RemoveExclamationMarks: def get(self, s): return s.replace("!", "") remove_exclamation_marks = RemoveExclamationMarks().get

ZoneInfo 을 사용하면 기존 pytz를 사용하지 않고도 타임존을 사용할 수 있다! (*ZoneInfo 는 Python3.9 버전 이상부터 사용가능) 'ZoneInfo' vs 'pytz' 그렇다면 ZoneInfo 와 pytz 는 어떤 차이가 있을까? 우선 ZoneInfo 는 따로 설치할 필요가 없는 빌트인 클래스이므로 다음처럼 간단하게 불러올 수 있다. from zoneinfo import ZoneInfo ZoneInfo 와 pytz 를 각각 사용해 현재시간을 가져와보자. pytztz = timezone("Asia/Seoul") zonetz = ZoneInfo("Asia/Seoul") print(datetime.datetime.now(tz=pytztz).tzname()) print(datetime.d..

Write a function named sumDigits which takes a number as input and returns the sum of the absolute value of each of the number's decimal digits. For example: (Input --> Output) 10 --> 1 99 --> 18 -32 --> 5 Let's assume that all numbers in the input will be integer values. Solution: def get_str_number(func): def wrapper(number): return func(str(number).replace("-", "")) return wrapper @get_str_nu..

Character recognition software is widely used to digitise printed texts. Thus the texts can be edited, searched and stored on a computer. When documents (especially pretty old ones written with a typewriter), are digitised character recognition softwares often make mistakes. Your task is correct the errors in the digitised text. You only have to handle the following mistakes: S is misinterpreted..

Simple, remove the spaces from the string, then return the resultant string. Solution: SELECT x, REPLACE(x, ' ', '') AS res FROM nospace Result: x res 8 j 8 mBliB8g imjB8B8 jl B 8j8mBliB8gimjB8B8jlB 8 8 Bi fk8h B 8 BB8B B B B888 c hl8 BhB fd 88Bifk8hB8BB8BBBB888chl8BhBfd 8aaaaa dddd r 8aaaaaddddr jfBm gk lf8hg 88lbe8 jfBmgklf8hg88lbe8

Description: Given a variable n, If n is an integer, Return a string with dash'-'marks before and after each odd integer, but do not begin or end the string with a dash mark. If n is negative, then the negative sign should be removed. If n is not an integer, return an empty value. Ex: dashatize(274) -> '2-7-4' dashatize(6815) -> '68-1-5' Solution: 1. If 'n' is not a number, 'None' is returned. 2..

문제 설명 The marketing team is spending way too much time typing in hashtags. Let's help them with our own Hashtag Generator! Here's the deal: It must start with a hashtag (#). All words must have their first letter capitalized. If the final result is longer than 140 chars it must return false. If the input or the result is an empty string it must return false. Examples " Hello there thanks for try..